The material described by Sm3Bi5O12 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. There are six inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to one O(1), one O(11), one O(14), one O(17), one O(21), and one O(3) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. In the second Sm site, Sm(2) is bonded to one O(15), one O(17), one O(21), one O(22), one O(24), and one O(7) atom to form SmO6 octahedra that share  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(6)O6 octahedra, and  an edgeedge with one Bi(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. In the third Sm site, Sm(3) is bonded to one O(11), one O(18), one O(2), one O(21), one O(4), and one O(7) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra, and  an edgeedge with one Bi(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. In the fourth Sm site, Sm(4) is bonded to one O(11), one O(13), one O(19), one O(23), one O(3), and one O(5) atom to form SmO6 octahedra that share  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the fifth Sm site, Sm(5) is bonded to one O(14), one O(16), one O(18), one O(6), one O(8), and one O(9) atom to form SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(6)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. In the sixth Sm site, Sm(6) is bonded to one O(1), one O(10), one O(12), one O(2), one O(20), and one O(4) atom to form SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra, and  an edgeedge with one Bi(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-56°. There are ten inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(10), one O(17), one O(3), one O(5), one O(6), and one O(8) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra, and  an edgeedge with one Bi(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the second Bi site, Bi(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(16), and one O(24) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. In the third Bi site, Bi(3) is bonded to one O(2), one O(22), one O(3), one O(6), one O(7), and one O(9) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra, and  an edgeedge with one Bi(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the fourth Bi site, Bi(4) is bonded to one O(12), one O(16), one O(20), one O(5), one O(7), and one O(9) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-56°. In the fifth Bi site, Bi(5) is bonded to one O(10), one O(13), one O(15), one O(18), one O(2), and one O(8) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-56°. In the sixth Bi site, Bi(6) is bonded to one O(12), one O(14), one O(15), one O(17), one O(18), and one O(23) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the seventh Bi site, Bi(7) is bonded to one O(19), one O(20), one O(21), one O(4), one O(5), and one O(8) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra, and  an edgeedge with one Bi(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-58°. In the eighth Bi site, Bi(8) is bonded to one O(1), one O(12), one O(15), one O(19), one O(24), and one O(9) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. In the ninth Bi site, Bi(9) is bonded to one O(13), one O(14), one O(16), one O(20), one O(22), and one O(23) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. In the tenth Bi site, Bi(10) is bonded to one O(19), one O(22), one O(23), one O(24), one O(4), and one O(6) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded to one Sm(1), one Sm(6), one Bi(2), and one Bi(8) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(10)SmBi3 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid, and  an edgeedge with one O(24)SmBi3 trigonal pyramid. In the second O site, O(2) is bonded to one Sm(3), one Sm(6), one Bi(3), and one Bi(5) atom to form distorted OSm2Bi2 tetrahedra that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(10)SmBi3 trigonal pyramid. In the third O site, O(3) is bonded to one Sm(1), one Sm(4), one Bi(1), and one Bi(3) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(5)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the fourth O site, O(4) is bonded to one Sm(3), one Sm(6), one Bi(10), and one Bi(7) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(19)SmBi3 trigonal pyramid, and  an edgeedge with one O(20)SmBi3 trigonal pyramid. In the fifth O site, O(5) is bonded to one Sm(4), one Bi(1), one Bi(4), and one Bi(7) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(19)SmBi3 trigonal pyramid,  an edgeedge with one O(20)SmBi3 trigonal pyramid, and  an edgeedge with one O(8)SmBi3 trigonal pyramid. In the sixth O site, O(6) is bonded to one Sm(5), one Bi(1), one Bi(10), and one Bi(3) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(22)SmBi3 trigonal pyramid,  an edgeedge with one O(8)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the seventh O site, O(7) is bonded to one Sm(2), one Sm(3), one Bi(3), and one Bi(4) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(22)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the eighth O site, O(8) is bonded to one Sm(5), one Bi(1), one Bi(5), and one Bi(7) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(10)SmBi3 trigonal pyramid,  an edgeedge with one O(5)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Sm(5), one Bi(3), one Bi(4), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the tenth O site, O(10) is bonded to one Sm(6), one Bi(1), one Bi(2), and one Bi(5) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(13)SmBi3 trigonal pyramid, and  an edgeedge with one O(8)SmBi3 trigonal pyramid. In the eleventh O site, O(11) is bonded to one Sm(1), one Sm(3), one Sm(4), and one Bi(2) atom to form distorted OSm3Bi tetrahedra that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(13)SmBi3 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Sm(6), one Bi(4), one Bi(6), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(15)SmBi3 trigonal pyramid,  an edgeedge with one O(20)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Sm(4), one Bi(2), one Bi(5), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(10)SmBi3 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(23)SmBi3 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Sm(1), one Sm(5), one Bi(6), and one Bi(9) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(23)SmBi3 trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Sm(2), one Bi(5), one Bi(6), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid, and  an edgeedge with one O(24)SmBi3 trigonal pyramid. In the sixteenth O site, O(16) is bonded to one Sm(5), one Bi(2), one Bi(4), and one Bi(9) atom to form OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(13)SmBi3 trigonal pyramid,  an edgeedge with one O(20)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the seventeenth O site, O(17) is bonded to one Sm(1), one Sm(2), one Bi(1), and one Bi(6) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(15)SmBi3 trigonal pyramid. In the eighteenth O site, O(18) is bonded to one Sm(3), one Sm(5), one Bi(5), and one Bi(6) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(15)SmBi3 trigonal pyramid, and  an edgeedge with one O(8)SmBi3 trigonal pyramid. In the nineteenth O site, O(19) is bonded to one Sm(4), one Bi(10), one Bi(7), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(23)SmBi3 trigonal pyramid,  an edgeedge with one O(24)SmBi3 trigonal pyramid, and  an edgeedge with one O(5)SmBi3 trigonal pyramid. In the twentieth O site, O(20) is bonded to one Sm(6), one Bi(4), one Bi(7), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(5)SmBi3 trigonal pyramid. In the twenty-first O site, O(21) is bonded to one Sm(1), one Sm(2), one Sm(3), and one Bi(7) atom to form OSm3Bi tetrahedra that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid. In the twenty-second O site, O(22) is bonded to one Sm(2), one Bi(10), one Bi(3), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(23)SmBi3 trigonal pyramid,  an edgeedge with one O(24)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the twenty-third O site, O(23) is bonded to one Sm(4), one Bi(10), one Bi(6), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(13)SmBi3 trigonal pyramid,  an edgeedge with one O(19)SmBi3 trigonal pyramid, and  an edgeedge with one O(22)SmBi3 trigonal pyramid. In the twenty-fourth O site, O(24) is bonded to one Sm(2), one Bi(10), one Bi(2), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(15)SmBi3 trigonal pyramid,  an edgeedge with one O(19)SmBi3 trigonal pyramid, and  an edgeedge with one O(22)SmBi3 trigonal pyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm3Bi5O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.627
_cell_length_b   9.632
_cell_length_c   9.644
_cell_angle_alpha   109.480
_cell_angle_beta   109.416
_cell_angle_gamma   109.403
_symmetry_Int_Tables_number   1
_cell_volume   689.412
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Sm  Sm0  1  0.034  0.784  0.751  1.0
  Sm  Sm1  1  0.999  0.001  0.500  1.0
  Sm  Sm2  1  0.219  0.250  0.969  1.0
  Sm  Sm3  1  0.499  0.998  1.000  1.0
  Sm  Sm4  1  0.502  0.501  0.501  1.0
  Sm  Sm5  1  0.999  0.501  0.999  1.0
  Bi  Bi6  1  0.278  0.751  0.529  1.0
  Bi  Bi7  1  0.248  0.969  0.217  1.0
  Bi  Bi8  1  0.250  0.470  0.720  1.0
  Bi  Bi9  1  0.528  0.278  0.750  1.0
  Bi  Bi10  1  0.470  0.718  0.250  1.0
  Bi  Bi11  1  0.749  0.528  0.282  1.0
  Bi  Bi12  1  0.752  0.030  0.781  1.0
  Bi  Bi13  1  0.781  0.748  0.030  1.0
  Bi  Bi14  1  0.719  0.250  0.471  1.0
  Bi  Bi15  1  0.971  0.221  0.249  1.0
  O  O16  1  0.988  0.724  0.952  1.0
  O  O17  1  0.235  0.507  0.965  1.0
  O  O18  1  0.259  0.730  0.775  1.0
  O  O19  1  0.018  0.278  0.046  1.0
  O  O20  1  0.485  0.032  0.763  1.0
  O  O21  1  0.231  0.468  0.452  1.0
  O  O22  1  0.268  0.224  0.740  1.0
  O  O23  1  0.550  0.772  0.534  1.0
  O  O24  1  0.535  0.549  0.772  1.0
  O  O25  1  0.220  0.739  0.269  1.0
  O  O26  1  0.273  0.041  0.004  1.0
  O  O27  1  0.764  0.485  0.033  1.0
  O  O28  1  0.514  0.965  0.236  1.0
  O  O29  1  0.772  0.536  0.547  1.0
  O  O30  1  0.729  0.779  0.265  1.0
  O  O31  1  0.452  0.231  0.468  1.0
  O  O32  1  0.034  0.766  0.493  1.0
  O  O33  1  0.465  0.449  0.229  1.0
  O  O34  1  0.724  0.952  0.986  1.0
  O  O35  1  0.778  0.263  0.729  1.0
  O  O36  1  0.962  0.991  0.731  1.0
  O  O37  1  0.966  0.237  0.514  1.0
  O  O38  1  0.736  0.269  0.220  1.0
  O  O39  1  0.049  0.015  0.281  1.0
[/CIF]
.
The material described by Sm3Bi5O12 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. There are six inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to one O(1), one O(11), one O(14), one O(17), one O(21), and one O(3) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. In the second Sm site, Sm(2) is bonded to one O(15), one O(17), one O(21), one O(22), one O(24), and one O(7) atom to form SmO6 octahedra that share  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(6)O6 octahedra, and  an edgeedge with one Bi(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. In the third Sm site, Sm(3) is bonded to one O(11), one O(18), one O(2), one O(21), one O(4), and one O(7) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra, and  an edgeedge with one Bi(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. In the fourth Sm site, Sm(4) is bonded to one O(11), one O(13), one O(19), one O(23), one O(3), and one O(5) atom to form SmO6 octahedra that share  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the fifth Sm site, Sm(5) is bonded to one O(14), one O(16), one O(18), one O(6), one O(8), and one O(9) atom to form SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(6)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-55°. In the sixth Sm site, Sm(6) is bonded to one O(1), one O(10), one O(12), one O(2), one O(20), and one O(4) atom to form SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra, and  an edgeedge with one Bi(8)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-56°. There are ten inequivalent Bi sites. In the first Bi site, Bi(1) is bonded to one O(10), one O(17), one O(3), one O(5), one O(6), and one O(8) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra, and  an edgeedge with one Bi(7)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the second Bi site, Bi(2) is bonded to one O(1), one O(10), one O(11), one O(13), one O(16), and one O(24) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-57°. In the third Bi site, Bi(3) is bonded to one O(2), one O(22), one O(3), one O(6), one O(7), and one O(9) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra, and  an edgeedge with one Bi(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the fourth Bi site, Bi(4) is bonded to one O(12), one O(16), one O(20), one O(5), one O(7), and one O(9) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-56°. In the fifth Bi site, Bi(5) is bonded to one O(10), one O(13), one O(15), one O(18), one O(2), and one O(8) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-56°. In the sixth Bi site, Bi(6) is bonded to one O(12), one O(14), one O(15), one O(17), one O(18), and one O(23) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(10)O6 octahedra,  a cornercorner with one Bi(4)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(5)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the seventh Bi site, Bi(7) is bonded to one O(19), one O(20), one O(21), one O(4), one O(5), and one O(8) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(8)O6 octahedra,  a cornercorner with one Bi(9)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(1)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra, and  an edgeedge with one Bi(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-58°. In the eighth Bi site, Bi(8) is bonded to one O(1), one O(12), one O(15), one O(19), one O(24), and one O(9) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. In the ninth Bi site, Bi(9) is bonded to one O(13), one O(14), one O(16), one O(20), one O(22), and one O(23) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(3)O6 octahedra,  a cornercorner with one Bi(5)O6 octahedra,  a cornercorner with one Bi(7)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Bi(10)O6 octahedra,  an edgeedge with one Bi(2)O6 octahedra,  an edgeedge with one Bi(4)O6 octahedra, and  an edgeedge with one Bi(6)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. In the tenth Bi site, Bi(10) is bonded to one O(19), one O(22), one O(23), one O(24), one O(4), and one O(6) atom to form distorted BiO6 octahedra that share  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Bi(1)O6 octahedra,  a cornercorner with one Bi(2)O6 octahedra,  a cornercorner with one Bi(6)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Bi(3)O6 octahedra,  an edgeedge with one Bi(7)O6 octahedra,  an edgeedge with one Bi(8)O6 octahedra, and  an edgeedge with one Bi(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded to one Sm(1), one Sm(6), one Bi(2), and one Bi(8) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(10)SmBi3 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid, and  an edgeedge with one O(24)SmBi3 trigonal pyramid. In the second O site, O(2) is bonded to one Sm(3), one Sm(6), one Bi(3), and one Bi(5) atom to form distorted OSm2Bi2 tetrahedra that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(10)SmBi3 trigonal pyramid. In the third O site, O(3) is bonded to one Sm(1), one Sm(4), one Bi(1), and one Bi(3) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(5)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the fourth O site, O(4) is bonded to one Sm(3), one Sm(6), one Bi(10), and one Bi(7) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(19)SmBi3 trigonal pyramid, and  an edgeedge with one O(20)SmBi3 trigonal pyramid. In the fifth O site, O(5) is bonded to one Sm(4), one Bi(1), one Bi(4), and one Bi(7) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(19)SmBi3 trigonal pyramid,  an edgeedge with one O(20)SmBi3 trigonal pyramid, and  an edgeedge with one O(8)SmBi3 trigonal pyramid. In the sixth O site, O(6) is bonded to one Sm(5), one Bi(1), one Bi(10), and one Bi(3) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(22)SmBi3 trigonal pyramid,  an edgeedge with one O(8)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the seventh O site, O(7) is bonded to one Sm(2), one Sm(3), one Bi(3), and one Bi(4) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(22)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the eighth O site, O(8) is bonded to one Sm(5), one Bi(1), one Bi(5), and one Bi(7) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(10)SmBi3 trigonal pyramid,  an edgeedge with one O(5)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Sm(5), one Bi(3), one Bi(4), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the tenth O site, O(10) is bonded to one Sm(6), one Bi(1), one Bi(2), and one Bi(5) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(13)SmBi3 trigonal pyramid, and  an edgeedge with one O(8)SmBi3 trigonal pyramid. In the eleventh O site, O(11) is bonded to one Sm(1), one Sm(3), one Sm(4), and one Bi(2) atom to form distorted OSm3Bi tetrahedra that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(13)SmBi3 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Sm(6), one Bi(4), one Bi(6), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(15)SmBi3 trigonal pyramid,  an edgeedge with one O(20)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Sm(4), one Bi(2), one Bi(5), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(10)SmBi3 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(23)SmBi3 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Sm(1), one Sm(5), one Bi(6), and one Bi(9) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(23)SmBi3 trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Sm(2), one Bi(5), one Bi(6), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(18)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid, and  an edgeedge with one O(24)SmBi3 trigonal pyramid. In the sixteenth O site, O(16) is bonded to one Sm(5), one Bi(2), one Bi(4), and one Bi(9) atom to form OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(13)SmBi3 trigonal pyramid,  an edgeedge with one O(20)SmBi3 trigonal pyramid, and  an edgeedge with one O(9)SmBi3 trigonal pyramid. In the seventeenth O site, O(17) is bonded to one Sm(1), one Sm(2), one Bi(1), and one Bi(6) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(21)Sm3Bi tetrahedra,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(3)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(15)SmBi3 trigonal pyramid. In the eighteenth O site, O(18) is bonded to one Sm(3), one Sm(5), one Bi(5), and one Bi(6) atom to form distorted OSm2Bi2 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(2)Sm2Bi2 tetrahedra,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(15)SmBi3 trigonal pyramid, and  an edgeedge with one O(8)SmBi3 trigonal pyramid. In the nineteenth O site, O(19) is bonded to one Sm(4), one Bi(10), one Bi(7), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(23)SmBi3 trigonal pyramid,  an edgeedge with one O(24)SmBi3 trigonal pyramid, and  an edgeedge with one O(5)SmBi3 trigonal pyramid. In the twentieth O site, O(20) is bonded to one Sm(6), one Bi(4), one Bi(7), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(12)SmBi3 trigonal pyramid,  an edgeedge with one O(16)SmBi3 trigonal pyramid, and  an edgeedge with one O(5)SmBi3 trigonal pyramid. In the twenty-first O site, O(21) is bonded to one Sm(1), one Sm(2), one Sm(3), and one Bi(7) atom to form OSm3Bi tetrahedra that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(1)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(22)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(8)SmBi3 trigonal pyramid,  an edgeedge with one O(11)Sm3Bi tetrahedra,  an edgeedge with one O(17)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(4)Sm2Bi2 trigonal pyramid, and  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid. In the twenty-second O site, O(22) is bonded to one Sm(2), one Bi(10), one Bi(3), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(2)Sm2Bi2 tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(14)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(19)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(7)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(23)SmBi3 trigonal pyramid,  an edgeedge with one O(24)SmBi3 trigonal pyramid, and  an edgeedge with one O(6)SmBi3 trigonal pyramid. In the twenty-third O site, O(23) is bonded to one Sm(4), one Bi(10), one Bi(6), and one Bi(9) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(18)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(3)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(15)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(20)SmBi3 trigonal pyramid,  a cornercorner with one O(24)SmBi3 trigonal pyramid,  a cornercorner with one O(5)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  an edgeedge with one O(14)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(13)SmBi3 trigonal pyramid,  an edgeedge with one O(19)SmBi3 trigonal pyramid, and  an edgeedge with one O(22)SmBi3 trigonal pyramid. In the twenty-fourth O site, O(24) is bonded to one Sm(2), one Bi(10), one Bi(2), and one Bi(8) atom to form distorted OSmBi3 trigonal pyramids that share  a cornercorner with one O(11)Sm3Bi tetrahedra,  a cornercorner with one O(21)Sm3Bi tetrahedra,  a cornercorner with one O(17)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(4)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(7)Sm2Bi2 trigonal pyramid,  a cornercorner with one O(10)SmBi3 trigonal pyramid,  a cornercorner with one O(12)SmBi3 trigonal pyramid,  a cornercorner with one O(13)SmBi3 trigonal pyramid,  a cornercorner with one O(16)SmBi3 trigonal pyramid,  a cornercorner with one O(23)SmBi3 trigonal pyramid,  a cornercorner with one O(6)SmBi3 trigonal pyramid,  a cornercorner with one O(9)SmBi3 trigonal pyramid,  an edgeedge with one O(1)Sm2Bi2 trigonal pyramid,  an edgeedge with one O(15)SmBi3 trigonal pyramid,  an edgeedge with one O(19)SmBi3 trigonal pyramid, and  an edgeedge with one O(22)SmBi3 trigonal pyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm3Bi5O12
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.627
_cell_length_b   9.632
_cell_length_c   9.644
_cell_angle_alpha   109.480
_cell_angle_beta   109.416
_cell_angle_gamma   109.403
_symmetry_Int_Tables_number   1
_cell_volume   689.412
_cell_formula_units_Z   2
loop_
 _symmetry_equiv_pos_site_id
 _symmetry_equiv_pos_as_xyz
  1  'x, y, z'
loop_
 _atom_site_type_symbol
 _atom_site_label
 _atom_site_symmetry_multiplicity
 _atom_site_fract_x
 _atom_site_fract_y
 _atom_site_fract_z
 _atom_site_occupancy
  Sm  Sm0  1  0.034  0.784  0.751  1.0
  Sm  Sm1  1  0.999  0.001  0.500  1.0
  Sm  Sm2  1  0.219  0.250  0.969  1.0
  Sm  Sm3  1  0.499  0.998  1.000  1.0
  Sm  Sm4  1  0.502  0.501  0.501  1.0
  Sm  Sm5  1  0.999  0.501  0.999  1.0
  Bi  Bi6  1  0.278  0.751  0.529  1.0
  Bi  Bi7  1  0.248  0.969  0.217  1.0
  Bi  Bi8  1  0.250  0.470  0.720  1.0
  Bi  Bi9  1  0.528  0.278  0.750  1.0
  Bi  Bi10  1  0.470  0.718  0.250  1.0
  Bi  Bi11  1  0.749  0.528  0.282  1.0
  Bi  Bi12  1  0.752  0.030  0.781  1.0
  Bi  Bi13  1  0.781  0.748  0.030  1.0
  Bi  Bi14  1  0.719  0.250  0.471  1.0
  Bi  Bi15  1  0.971  0.221  0.249  1.0
  O  O16  1  0.988  0.724  0.952  1.0
  O  O17  1  0.235  0.507  0.965  1.0
  O  O18  1  0.259  0.730  0.775  1.0
  O  O19  1  0.018  0.278  0.046  1.0
  O  O20  1  0.485  0.032  0.763  1.0
  O  O21  1  0.231  0.468  0.452  1.0
  O  O22  1  0.268  0.224  0.740  1.0
  O  O23  1  0.550  0.772  0.534  1.0
  O  O24  1  0.535  0.549  0.772  1.0
  O  O25  1  0.220  0.739  0.269  1.0
  O  O26  1  0.273  0.041  0.004  1.0
  O  O27  1  0.764  0.485  0.033  1.0
  O  O28  1  0.514  0.965  0.236  1.0
  O  O29  1  0.772  0.536  0.547  1.0
  O  O30  1  0.729  0.779  0.265  1.0
  O  O31  1  0.452  0.231  0.468  1.0
  O  O32  1  0.034  0.766  0.493  1.0
  O  O33  1  0.465  0.449  0.229  1.0
  O  O34  1  0.724  0.952  0.986  1.0
  O  O35  1  0.778  0.263  0.729  1.0
  O  O36  1  0.962  0.991  0.731  1.0
  O  O37  1  0.966  0.237  0.514  1.0
  O  O38  1  0.736  0.269  0.220  1.0
  O  O39  1  0.049  0.015  0.281  1.0
[/CIF]
.