The material structure described by Sm11Y5O24 is Spinel-like structured and crystallizes in the triclinic P1 space group. There are eleven inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to one O(10), one O(16), one O(2), one O(21), one O(24), and one O(4) atom to form SmO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra,  an edgeedge with one Sm(9)O6 octahedra,  an edgeedge with one Y(1)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the second Sm site, Sm(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(22), and one O(5) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the third Sm site, Sm(3) is bonded to one O(12), one O(14), one O(18), one O(22), one O(3), and one O(8) atom to form SmO6 octahedra that share  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(1)O6 octahedra, and  an edgeedge with one Y(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the fourth Sm site, Sm(4) is bonded to one O(11), one O(13), one O(17), one O(19), one O(5), and one O(7) atom to form SmO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Sm(9)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-60°. In the fifth Sm site, Sm(5) is bonded to one O(1), one O(15), one O(20), one O(23), one O(6), and one O(9) atom to form SmO6 octahedra that share  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(4)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-58°. In the sixth Sm site, Sm(6) is bonded to one O(1), one O(10), one O(14), one O(19), one O(6), and one O(7) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-56°. In the seventh Sm site, Sm(7) is bonded to one O(13), one O(14), one O(19), one O(23), one O(24), and one O(3) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(10)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 Sm(9)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. In the eighth Sm site, Sm(8) is bonded to one O(15), one O(16), one O(20), one O(4), one O(7), and one O(8) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  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 Sm(9)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the ninth Sm site, Sm(9) is bonded to one O(10), one O(13), one O(17), one O(20), one O(22), and one O(24) atom to form distorted SmO6 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 Sm(6)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(4)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the tenth Sm site, Sm(10) is bonded to one O(14), one O(18), one O(23), one O(4), one O(5), and one O(9) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(4)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-57°. In the eleventh Sm site, Sm(11) is bonded to one O(11), one O(15), one O(18), one O(22), one O(24), and one O(4) 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 Sm(7)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Sm(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-60°. There are five inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(13), one O(2), one O(21), one O(3), one O(8), and one O(9) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. In the second Y site, Y(2) is bonded to one O(1), one O(12), one O(15), one O(19), one O(21), and one O(8) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  a cornercorner with one Y(5)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 Sm(6)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-59°. In the third Y site, Y(3) is bonded to one O(11), one O(16), one O(2), one O(3), one O(6), and one O(7) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-58°. In the fourth Y site, Y(4) is bonded to one O(10), one O(17), one O(18), one O(21), one O(6), and one O(9) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(9)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-57°. In the fifth Y site, Y(5) is bonded to one O(12), one O(16), one O(17), one O(20), one O(23), and one O(5) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Sm(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-59°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded to one Sm(2), one Sm(5), one Sm(6), and one Y(2) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid, and  an edgeedge with one O(19)Sm3Y trigonal pyramid. In the second O site, O(2) is bonded to one Sm(1), one Sm(2), one Y(1), and one Y(3) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the third O site, O(3) is bonded to one Sm(3), one Sm(7), one Y(1), and one Y(3) atom to form OSm2Y2 tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid,  an edgeedge with one O(8)Sm2Y2 trigonal pyramid,  an edgeedge with one O(13)Sm3Y trigonal pyramid, and  an edgeedge with one O(14)Sm4 trigonal pyramid. In the fourth O site, O(4) is bonded to one Sm(1), one Sm(10), one Sm(11), and one Sm(8) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid,  an edgeedge with one O(18)Sm3Y trigonal pyramid, and  an edgeedge with one O(24)Sm4 trigonal pyramid. In the fifth O site, O(5) is bonded to one Sm(10), one Sm(2), one Sm(4), and one Y(5) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid, and  an edgeedge with one O(23)Sm3Y trigonal pyramid. In the sixth O site, O(6) is bonded to one Sm(5), one Sm(6), one Y(3), and one Y(4) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(10)Sm3Y tetrahedra, and  an edgeedge with one O(7)Sm3Y tetrahedra. In the seventh O site, O(7) is bonded to one Sm(4), one Sm(6), one Sm(8), and one Y(3) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid, and  an edgeedge with one O(19)Sm3Y trigonal pyramid. In the eighth O site, O(8) is bonded to one Sm(3), one Sm(8), one Y(1), and one Y(2) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Sm(10), one Sm(5), one Y(1), and one Y(4) atom to form OSm2Y2 tetrahedra that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(18)Sm3Y trigonal pyramid,  an edgeedge with one O(23)Sm3Y trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the tenth O site, O(10) is bonded to one Sm(1), one Sm(6), one Sm(9), and one Y(4) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(24)Sm4 trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the eleventh O site, O(11) is bonded to one Sm(11), one Sm(2), one Sm(4), and one Y(3) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(5)Sm3Y tetrahedra,  an edgeedge with one O(7)Sm3Y tetrahedra,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(22)Sm4 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Sm(2), one Sm(3), one Y(2), and one Y(5) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(5)Sm3Y tetrahedra,  an edgeedge with one O(8)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(22)Sm4 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Sm(4), one Sm(7), one Sm(9), and one Y(1) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(19)Sm3Y trigonal pyramid, and  an edgeedge with one O(24)Sm4 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Sm(10), one Sm(3), one Sm(6), and one Sm(7) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(18)Sm3Y trigonal pyramid,  an edgeedge with one O(19)Sm3Y trigonal pyramid, and  an edgeedge with one O(23)Sm3Y trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Sm(11), one Sm(5), one Sm(8), and one Y(2) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(8)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. In the sixteenth O site, O(16) is bonded to one Sm(1), one Sm(8), one Y(3), and one Y(5) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(7)Sm3Y tetrahedra,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. In the seventeenth O site, O(17) is bonded to one Sm(4), one Sm(9), one Y(4), and one Y(5) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(10)Sm3Y tetrahedra,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(5)Sm3Y tetrahedra, and  an edgeedge with one O(13)Sm3Y trigonal pyramid. In the eighteenth O site, O(18) is bonded to one Sm(10), one Sm(11), one Sm(3), and one Y(4) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(14)Sm4 trigonal pyramid,  an edgeedge with one O(22)Sm4 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. In the nineteenth O site, O(19) is bonded to one Sm(4), one Sm(6), one Sm(7), and one Y(2) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(7)Sm3Y tetrahedra,  an edgeedge with one O(13)Sm3Y trigonal pyramid, and  an edgeedge with one O(14)Sm4 trigonal pyramid. In the twentieth O site, O(20) is bonded to one Sm(5), one Sm(8), one Sm(9), and one Y(5) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid, and  an edgeedge with one O(23)Sm3Y trigonal pyramid. In the twenty-first O site, O(21) is bonded to one Sm(1), one Y(1), one Y(2), and one Y(4) atom to form OSmY3 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(10)Sm3Y tetrahedra,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(8)Sm2Y2 trigonal pyramid. In the twenty-second O site, O(22) is bonded to one Sm(11), one Sm(2), one Sm(3), and one Sm(9) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid,  an edgeedge with one O(18)Sm3Y trigonal pyramid, and  an edgeedge with one O(24)Sm4 trigonal pyramid. In the twenty-third O site, O(23) is bonded to one Sm(10), one Sm(5), one Sm(7), and one Y(5) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(5)Sm3Y tetrahedra, and  an edgeedge with one O(14)Sm4 trigonal pyramid. In the twenty-fourth O site, O(24) is bonded to one Sm(1), one Sm(11), one Sm(7), and one Sm(9) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(10)Sm3Y tetrahedra,  an edgeedge with one O(13)Sm3Y trigonal pyramid,  an edgeedge with one O(22)Sm4 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm11Y5O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.376
_cell_length_b   9.378
_cell_length_c   9.391
_cell_angle_alpha   109.477
_cell_angle_beta   109.479
_cell_angle_gamma   109.395
_symmetry_Int_Tables_number   1
_cell_volume   636.151
_cell_formula_units_Z   1
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  0.506  0.003  0.005  1.0
  Sm  Sm1  1  0.219  0.470  0.750  1.0
  Sm  Sm2  1  0.993  0.001  0.498  1.0
  Sm  Sm3  1  0.000  0.497  0.999  1.0
  Sm  Sm4  1  0.500  0.500  0.499  1.0
  Sm  Sm5  1  0.251  0.719  0.469  1.0
  Sm  Sm6  1  0.781  0.532  0.250  1.0
  Sm  Sm7  1  0.281  0.031  0.251  1.0
  Sm  Sm8  1  0.532  0.250  0.781  1.0
  Sm  Sm9  1  0.967  0.749  0.720  1.0
  Sm  Sm10  1  0.248  0.219  0.969  1.0
  Y  Y11  1  0.750  0.784  0.032  1.0
  Y  Y12  1  0.030  0.249  0.281  1.0
  Y  Y13  1  0.471  0.752  0.220  1.0
  Y  Y14  1  0.718  0.968  0.751  1.0
  Y  Y15  1  0.750  0.280  0.532  1.0
  O  O16  1  0.268  0.508  0.537  1.0
  O  O17  1  0.475  0.732  0.962  1.0
  O  O18  1  0.725  0.759  0.266  1.0
  O  O19  1  0.231  0.957  0.971  1.0
  O  O20  1  0.006  0.536  0.768  1.0
  O  O21  1  0.518  0.746  0.470  1.0
  O  O22  1  0.231  0.768  0.239  1.0
  O  O23  1  0.025  0.988  0.257  1.0
  O  O24  1  0.737  0.732  0.773  1.0
  O  O25  1  0.464  0.970  0.733  1.0
  O  O26  1  0.248  0.477  0.017  1.0
  O  O27  1  0.954  0.231  0.483  1.0
  O  O28  1  0.761  0.535  0.988  1.0
  O  O29  1  0.041  0.773  0.513  1.0
  O  O30  1  0.254  0.270  0.230  1.0
  O  O31  1  0.546  0.030  0.276  1.0
  O  O32  1  0.771  0.224  0.755  1.0
  O  O33  1  0.965  0.012  0.742  1.0
  O  O34  1  0.986  0.453  0.228  1.0
  O  O35  1  0.493  0.261  0.530  1.0
  O  O36  1  0.776  0.043  0.031  1.0
  O  O37  1  0.267  0.239  0.726  1.0
  O  O38  1  0.729  0.484  0.459  1.0
  O  O39  1  0.529  0.270  0.041  1.0
[/CIF]
.
The material structure described by Sm11Y5O24 is Spinel-like structured and crystallizes in the triclinic P1 space group. There are eleven inequivalent Sm sites. In the first Sm site, Sm(1) is bonded to one O(10), one O(16), one O(2), one O(21), one O(24), and one O(4) atom to form SmO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra,  an edgeedge with one Sm(9)O6 octahedra,  an edgeedge with one Y(1)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the second Sm site, Sm(2) is bonded to one O(1), one O(11), one O(12), one O(2), one O(22), and one O(5) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the third Sm site, Sm(3) is bonded to one O(12), one O(14), one O(18), one O(22), one O(3), and one O(8) atom to form SmO6 octahedra that share  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(1)O6 octahedra, and  an edgeedge with one Y(2)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-59°. In the fourth Sm site, Sm(4) is bonded to one O(11), one O(13), one O(17), one O(19), one O(5), and one O(7) atom to form SmO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Sm(9)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-60°. In the fifth Sm site, Sm(5) is bonded to one O(1), one O(15), one O(20), one O(23), one O(6), and one O(9) atom to form SmO6 octahedra that share  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(4)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-58°. In the sixth Sm site, Sm(6) is bonded to one O(1), one O(10), one O(14), one O(19), one O(6), and one O(7) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-56°. In the seventh Sm site, Sm(7) is bonded to one O(13), one O(14), one O(19), one O(23), one O(24), and one O(3) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(10)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 Sm(9)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 53-58°. In the eighth Sm site, Sm(8) is bonded to one O(15), one O(16), one O(20), one O(4), one O(7), and one O(8) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  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 Sm(9)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the ninth Sm site, Sm(9) is bonded to one O(10), one O(13), one O(17), one O(20), one O(22), and one O(24) atom to form distorted SmO6 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 Sm(6)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(4)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-57°. In the tenth Sm site, Sm(10) is bonded to one O(14), one O(18), one O(23), one O(4), one O(5), and one O(9) atom to form distorted SmO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(6)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Y(1)O6 octahedra,  an edgeedge with one Sm(11)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(4)O6 octahedra, and  an edgeedge with one Y(5)O6 octahedra. The corner-sharing octahedral tilt angles range from 55-57°. In the eleventh Sm site, Sm(11) is bonded to one O(11), one O(15), one O(18), one O(22), one O(24), and one O(4) 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 Sm(7)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Sm(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-60°. There are five inequivalent Y sites. In the first Y site, Y(1) is bonded to one O(13), one O(2), one O(21), one O(3), one O(8), and one O(9) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(10)O6 octahedra,  a cornercorner with one Sm(2)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(8)O6 octahedra,  a cornercorner with one Sm(9)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(3)O6 octahedra,  an edgeedge with one Sm(7)O6 octahedra,  an edgeedge with one Y(2)O6 octahedra,  an edgeedge with one Y(3)O6 octahedra, and  an edgeedge with one Y(4)O6 octahedra. The corner-sharing octahedral tilt angles range from 54-55°. In the second Y site, Y(2) is bonded to one O(1), one O(12), one O(15), one O(19), one O(21), and one O(8) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  a cornercorner with one Y(5)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 Sm(6)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-59°. In the third Y site, Y(3) is bonded to one O(11), one O(16), one O(2), one O(3), one O(6), and one O(7) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(5)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-58°. In the fourth Y site, Y(4) is bonded to one O(10), one O(17), one O(18), one O(21), one O(6), and one O(9) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(11)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(4)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(5)O6 octahedra,  an edgeedge with one Sm(1)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(6)O6 octahedra,  an edgeedge with one Sm(9)O6 octahedra, and  an edgeedge with one Y(1)O6 octahedra. The corner-sharing octahedral tilt angles range from 52-57°. In the fifth Y site, Y(5) is bonded to one O(12), one O(16), one O(17), one O(20), one O(23), and one O(5) atom to form distorted YO6 octahedra that share  a cornercorner with one Sm(1)O6 octahedra,  a cornercorner with one Sm(3)O6 octahedra,  a cornercorner with one Sm(7)O6 octahedra,  a cornercorner with one Y(2)O6 octahedra,  a cornercorner with one Y(3)O6 octahedra,  a cornercorner with one Y(4)O6 octahedra,  an edgeedge with one Sm(10)O6 octahedra,  an edgeedge with one Sm(2)O6 octahedra,  an edgeedge with one Sm(4)O6 octahedra,  an edgeedge with one Sm(5)O6 octahedra,  an edgeedge with one Sm(8)O6 octahedra, and  an edgeedge with one Sm(9)O6 octahedra. The corner-sharing octahedral tilt angles range from 51-59°. There are twenty-four inequivalent O sites. In the first O site, O(1) is bonded to one Sm(2), one Sm(5), one Sm(6), and one Y(2) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid, and  an edgeedge with one O(19)Sm3Y trigonal pyramid. In the second O site, O(2) is bonded to one Sm(1), one Sm(2), one Y(1), and one Y(3) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the third O site, O(3) is bonded to one Sm(3), one Sm(7), one Y(1), and one Y(3) atom to form OSm2Y2 tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid,  an edgeedge with one O(8)Sm2Y2 trigonal pyramid,  an edgeedge with one O(13)Sm3Y trigonal pyramid, and  an edgeedge with one O(14)Sm4 trigonal pyramid. In the fourth O site, O(4) is bonded to one Sm(1), one Sm(10), one Sm(11), and one Sm(8) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid,  an edgeedge with one O(18)Sm3Y trigonal pyramid, and  an edgeedge with one O(24)Sm4 trigonal pyramid. In the fifth O site, O(5) is bonded to one Sm(10), one Sm(2), one Sm(4), and one Y(5) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid, and  an edgeedge with one O(23)Sm3Y trigonal pyramid. In the sixth O site, O(6) is bonded to one Sm(5), one Sm(6), one Y(3), and one Y(4) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(10)Sm3Y tetrahedra, and  an edgeedge with one O(7)Sm3Y tetrahedra. In the seventh O site, O(7) is bonded to one Sm(4), one Sm(6), one Sm(8), and one Y(3) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid, and  an edgeedge with one O(19)Sm3Y trigonal pyramid. In the eighth O site, O(8) is bonded to one Sm(3), one Sm(8), one Y(1), and one Y(2) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the ninth O site, O(9) is bonded to one Sm(10), one Sm(5), one Y(1), and one Y(4) atom to form OSm2Y2 tetrahedra that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(18)Sm3Y trigonal pyramid,  an edgeedge with one O(23)Sm3Y trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the tenth O site, O(10) is bonded to one Sm(1), one Sm(6), one Sm(9), and one Y(4) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(6)Sm2Y2 trigonal pyramid,  an edgeedge with one O(24)Sm4 trigonal pyramid, and  an edgeedge with one O(21)SmY3 trigonal pyramid. In the eleventh O site, O(11) is bonded to one Sm(11), one Sm(2), one Sm(4), and one Y(3) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(5)Sm3Y tetrahedra,  an edgeedge with one O(7)Sm3Y tetrahedra,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(22)Sm4 trigonal pyramid. In the twelfth O site, O(12) is bonded to one Sm(2), one Sm(3), one Y(2), and one Y(5) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(5)Sm3Y tetrahedra,  an edgeedge with one O(8)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(22)Sm4 trigonal pyramid. In the thirteenth O site, O(13) is bonded to one Sm(4), one Sm(7), one Sm(9), and one Y(1) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(19)Sm3Y trigonal pyramid, and  an edgeedge with one O(24)Sm4 trigonal pyramid. In the fourteenth O site, O(14) is bonded to one Sm(10), one Sm(3), one Sm(6), and one Sm(7) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(3)Sm2Y2 tetrahedra,  an edgeedge with one O(18)Sm3Y trigonal pyramid,  an edgeedge with one O(19)Sm3Y trigonal pyramid, and  an edgeedge with one O(23)Sm3Y trigonal pyramid. In the fifteenth O site, O(15) is bonded to one Sm(11), one Sm(5), one Sm(8), and one Y(2) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(8)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. In the sixteenth O site, O(16) is bonded to one Sm(1), one Sm(8), one Y(3), and one Y(5) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(7)Sm3Y tetrahedra,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. In the seventeenth O site, O(17) is bonded to one Sm(4), one Sm(9), one Y(4), and one Y(5) atom to form OSm2Y2 trigonal pyramids that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(10)Sm3Y tetrahedra,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(5)Sm3Y tetrahedra, and  an edgeedge with one O(13)Sm3Y trigonal pyramid. In the eighteenth O site, O(18) is bonded to one Sm(10), one Sm(11), one Sm(3), and one Y(4) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(14)Sm4 trigonal pyramid,  an edgeedge with one O(22)Sm4 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. In the nineteenth O site, O(19) is bonded to one Sm(4), one Sm(6), one Sm(7), and one Y(2) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(1)Sm3Y tetrahedra,  an edgeedge with one O(7)Sm3Y tetrahedra,  an edgeedge with one O(13)Sm3Y trigonal pyramid, and  an edgeedge with one O(14)Sm4 trigonal pyramid. In the twentieth O site, O(20) is bonded to one Sm(5), one Sm(8), one Sm(9), and one Y(5) atom to form OSm3Y tetrahedra that share  a cornercorner with one O(9)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(7)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(22)Sm4 trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(16)Sm2Y2 trigonal pyramid,  an edgeedge with one O(17)Sm2Y2 trigonal pyramid,  an edgeedge with one O(15)Sm3Y trigonal pyramid, and  an edgeedge with one O(23)Sm3Y trigonal pyramid. In the twenty-first O site, O(21) is bonded to one Sm(1), one Y(1), one Y(2), and one Y(4) atom to form OSmY3 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(10)Sm3Y tetrahedra,  an edgeedge with one O(2)Sm2Y2 trigonal pyramid, and  an edgeedge with one O(8)Sm2Y2 trigonal pyramid. In the twenty-second O site, O(22) is bonded to one Sm(11), one Sm(2), one Sm(3), and one Sm(9) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(10)Sm3Y tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(5)Sm3Y tetrahedra,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(8)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(12)Sm2Y2 trigonal pyramid,  an edgeedge with one O(11)Sm3Y trigonal pyramid,  an edgeedge with one O(18)Sm3Y trigonal pyramid, and  an edgeedge with one O(24)Sm4 trigonal pyramid. In the twenty-third O site, O(23) is bonded to one Sm(10), one Sm(5), one Sm(7), and one Y(5) atom to form OSm3Y trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(1)Sm3Y tetrahedra,  a cornercorner with one O(12)Sm2Y2 trigonal pyramid,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(6)Sm2Y2 trigonal pyramid,  a cornercorner with one O(13)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(24)Sm4 trigonal pyramid,  a cornercorner with one O(4)Sm4 trigonal pyramid,  an edgeedge with one O(9)Sm2Y2 tetrahedra,  an edgeedge with one O(20)Sm3Y tetrahedra,  an edgeedge with one O(5)Sm3Y tetrahedra, and  an edgeedge with one O(14)Sm4 trigonal pyramid. In the twenty-fourth O site, O(24) is bonded to one Sm(1), one Sm(11), one Sm(7), and one Sm(9) atom to form OSm4 trigonal pyramids that share  a cornercorner with one O(3)Sm2Y2 tetrahedra,  a cornercorner with one O(20)Sm3Y tetrahedra,  a cornercorner with one O(16)Sm2Y2 trigonal pyramid,  a cornercorner with one O(17)Sm2Y2 trigonal pyramid,  a cornercorner with one O(2)Sm2Y2 trigonal pyramid,  a cornercorner with one O(11)Sm3Y trigonal pyramid,  a cornercorner with one O(15)Sm3Y trigonal pyramid,  a cornercorner with one O(18)Sm3Y trigonal pyramid,  a cornercorner with one O(19)Sm3Y trigonal pyramid,  a cornercorner with one O(23)Sm3Y trigonal pyramid,  a cornercorner with one O(14)Sm4 trigonal pyramid,  a cornercorner with one O(21)SmY3 trigonal pyramid,  an edgeedge with one O(10)Sm3Y tetrahedra,  an edgeedge with one O(13)Sm3Y trigonal pyramid,  an edgeedge with one O(22)Sm4 trigonal pyramid, and  an edgeedge with one O(4)Sm4 trigonal pyramid. is represented by the Crystallographic Information File (CIF) [CIF]
data_Sm11Y5O24
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   9.376
_cell_length_b   9.378
_cell_length_c   9.391
_cell_angle_alpha   109.477
_cell_angle_beta   109.479
_cell_angle_gamma   109.395
_symmetry_Int_Tables_number   1
_cell_volume   636.151
_cell_formula_units_Z   1
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  0.506  0.003  0.005  1.0
  Sm  Sm1  1  0.219  0.470  0.750  1.0
  Sm  Sm2  1  0.993  0.001  0.498  1.0
  Sm  Sm3  1  0.000  0.497  0.999  1.0
  Sm  Sm4  1  0.500  0.500  0.499  1.0
  Sm  Sm5  1  0.251  0.719  0.469  1.0
  Sm  Sm6  1  0.781  0.532  0.250  1.0
  Sm  Sm7  1  0.281  0.031  0.251  1.0
  Sm  Sm8  1  0.532  0.250  0.781  1.0
  Sm  Sm9  1  0.967  0.749  0.720  1.0
  Sm  Sm10  1  0.248  0.219  0.969  1.0
  Y  Y11  1  0.750  0.784  0.032  1.0
  Y  Y12  1  0.030  0.249  0.281  1.0
  Y  Y13  1  0.471  0.752  0.220  1.0
  Y  Y14  1  0.718  0.968  0.751  1.0
  Y  Y15  1  0.750  0.280  0.532  1.0
  O  O16  1  0.268  0.508  0.537  1.0
  O  O17  1  0.475  0.732  0.962  1.0
  O  O18  1  0.725  0.759  0.266  1.0
  O  O19  1  0.231  0.957  0.971  1.0
  O  O20  1  0.006  0.536  0.768  1.0
  O  O21  1  0.518  0.746  0.470  1.0
  O  O22  1  0.231  0.768  0.239  1.0
  O  O23  1  0.025  0.988  0.257  1.0
  O  O24  1  0.737  0.732  0.773  1.0
  O  O25  1  0.464  0.970  0.733  1.0
  O  O26  1  0.248  0.477  0.017  1.0
  O  O27  1  0.954  0.231  0.483  1.0
  O  O28  1  0.761  0.535  0.988  1.0
  O  O29  1  0.041  0.773  0.513  1.0
  O  O30  1  0.254  0.270  0.230  1.0
  O  O31  1  0.546  0.030  0.276  1.0
  O  O32  1  0.771  0.224  0.755  1.0
  O  O33  1  0.965  0.012  0.742  1.0
  O  O34  1  0.986  0.453  0.228  1.0
  O  O35  1  0.493  0.261  0.530  1.0
  O  O36  1  0.776  0.043  0.031  1.0
  O  O37  1  0.267  0.239  0.726  1.0
  O  O38  1  0.729  0.484  0.459  1.0
  O  O39  1  0.529  0.270  0.041  1.0
[/CIF]
.