The material described by Sm4Cr3Fe31 crystallizes in the monoclinic Cm space group. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 19-coordinate geometry to one Fe(1), one Fe(11), one Fe(12), one Fe(19), one Fe(7), two equivalent Fe(13), two equivalent Fe(15), two equivalent Fe(17), two equivalent Fe(3), two equivalent Fe(5), and four equivalent Fe(9) atoms. In the second Sm site, Sm(2) is bonded in a 19-coordinate geometry to one Cr(1), one Fe(11), one Fe(12), one Fe(2), one Fe(8), two equivalent Fe(14), two equivalent Fe(16), two equivalent Fe(18), two equivalent Fe(4), two equivalent Fe(6), and four equivalent Fe(10) atoms. In the third Sm site, Sm(3) is bonded in a 19-coordinate geometry to one Cr(2), one Fe(1), one Fe(11), one Fe(7), one Fe(8), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(17), two equivalent Fe(4), two equivalent Fe(9), and four equivalent Fe(5) atoms. In the fourth Sm site, Sm(4) is bonded in a 19-coordinate geometry to one Cr(3), one Fe(12), one Fe(2), one Fe(7), one Fe(8), two equivalent Fe(10), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(18), two equivalent Fe(3), and four equivalent Fe(6) atoms. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 14-coordinate geometry to one Sm(2), one Cr(2), one Fe(11), one Fe(2), two equivalent Fe(10), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(18), and two equivalent Fe(4) atoms. In the second Cr site, Cr(2) is bonded in a 14-coordinate geometry to one Sm(3), one Cr(1), one Fe(1), one Fe(8), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(18), two equivalent Fe(4), and two equivalent Fe(5) atoms. In the third Cr site, Cr(3) is bonded in a 14-coordinate geometry to one Sm(4), one Fe(19), one Fe(2), one Fe(7), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(17), two equivalent Fe(3), and two equivalent Fe(6) atoms. There are nineteen inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one Sm(1), one Sm(3), one Cr(2), one Fe(19), two equivalent Fe(15), two equivalent Fe(17), two equivalent Fe(5), and two equivalent Fe(9) atoms to form distorted FeSm2CrFe9 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the second Fe site, Fe(2) is bonded to one Sm(2), one Sm(4), one Cr(1), one Cr(3), two equivalent Fe(10), two equivalent Fe(16), two equivalent Fe(18), and two equivalent Fe(6) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(12)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra. In the third Fe site, Fe(3) is bonded to one Sm(1), one Sm(4), one Cr(3), one Fe(12), one Fe(16), one Fe(17), one Fe(19), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(13) atoms to form distorted FeSm2CrFe9 cuboctahedra that share  a cornercorner with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(11)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the fourth Fe site, Fe(4) is bonded to one Sm(2), one Sm(3), one Cr(1), one Cr(2), one Fe(10), one Fe(11), one Fe(15), one Fe(18), one Fe(5), one Fe(8), and two equivalent Fe(14) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with three equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, and faces with three equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the fifth Fe site, Fe(5) is bonded to one Sm(1), two equivalent Sm(3), one Cr(2), one Fe(1), one Fe(11), one Fe(14), one Fe(17), one Fe(4), one Fe(9), and two equivalent Fe(15) atoms to form FeSm3CrFe8 cuboctahedra that share  a cornercorner with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra, and faces with four equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra. In the sixth Fe site, Fe(6) is bonded to one Sm(2), two equivalent Sm(4), one Cr(3), one Fe(10), one Fe(12), one Fe(13), one Fe(18), one Fe(2), one Fe(3), and two equivalent Fe(16) atoms to form FeSm3CrFe8 cuboctahedra that share  a cornercorner with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra. In the seventh Fe site, Fe(7) is bonded to one Sm(1), one Sm(3), one Sm(4), one Cr(3), two equivalent Fe(13), two equivalent Fe(17), two equivalent Fe(3), and two equivalent Fe(9) atoms to form FeSm3CrFe8 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(12)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(1)Sm2CrFe9 cuboctahedra, corners with four equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the eighth Fe site, Fe(8) is bonded to one Sm(2), one Sm(3), one Sm(4), one Cr(2), two equivalent Fe(10), two equivalent Fe(14), two equivalent Fe(18), and two equivalent Fe(4) atoms to form FeSm3CrFe8 cuboctahedra that share corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(7)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(2)Sm2Cr2Fe8 cuboctahedra, corners with four equivalent Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, faces with four equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the ninth Fe site, Fe(9) is bonded to one Sm(3), two equivalent Sm(1), one Fe(1), one Fe(13), one Fe(15), one Fe(19), one Fe(3), one Fe(5), one Fe(7), and two equivalent Fe(17) atoms to form FeSm3Fe9 cuboctahedra that share  a cornercorner with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(7)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the tenth Fe site, Fe(10) is bonded to one Sm(4), two equivalent Sm(2), one Cr(1), one Fe(14), one Fe(16), one Fe(2), one Fe(4), one Fe(6), one Fe(8), and two equivalent Fe(18) atoms to form FeSm3CrFe8 cuboctahedra that share  a cornercorner with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with four equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the eleventh Fe site, Fe(11) is bonded to one Sm(1), one Sm(2), one Sm(3), one Cr(1), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(4), and two equivalent Fe(5) atoms to form FeSm3CrFe8 cuboctahedra that share corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(12)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(1)Sm2CrFe9 cuboctahedra, corners with four equivalent Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra, faces with four equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra. In the twelfth Fe site, Fe(12) is bonded to one Sm(1), one Sm(2), one Sm(4), one Fe(19), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(3), and two equivalent Fe(6) atoms to form FeSm3Fe9 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(7)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(2)Sm2Cr2Fe8 cuboctahedra, corners with four equivalent Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the thirteenth Fe site, Fe(13) is bonded in a 12-coordinate geometry to one Sm(1), one Sm(4), one Cr(3), one Fe(12), one Fe(16), one Fe(17), one Fe(19), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(3) atoms. In the fourteenth Fe site, Fe(14) is bonded to one Sm(2), one Sm(3), one Cr(1), one Cr(2), one Fe(10), one Fe(11), one Fe(15), one Fe(18), one Fe(5), one Fe(8), and two equivalent Fe(4) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(6)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra,  a cornercorner with one Fe(9)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(9)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, faces with three equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, and faces with three equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the fifteenth Fe site, Fe(15) is bonded to one Sm(1), one Sm(3), one Cr(1), one Cr(2), one Fe(1), one Fe(11), one Fe(14), one Fe(15), one Fe(4), one Fe(9), and two equivalent Fe(5) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(3)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(10)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(8)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(10)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra, faces with three equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with three equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(5)Sm3CrFe8 cuboctahedra. In the sixteenth Fe site, Fe(16) is bonded in a 12-coordinate geometry to one Sm(2), one Sm(4), one Cr(3), one Fe(10), one Fe(12), one Fe(13), one Fe(16), one Fe(19), one Fe(2), one Fe(3), and two equivalent Fe(6) atoms. In the seventeenth Fe site, Fe(17) is bonded in a 12-coordinate geometry to one Sm(1), one Sm(3), one Cr(3), one Fe(1), one Fe(13), one Fe(17), one Fe(19), one Fe(3), one Fe(5), one Fe(7), and two equivalent Fe(9) atoms. In the eighteenth Fe site, Fe(18) is bonded to one Sm(2), one Sm(4), one Cr(1), one Cr(2), one Fe(14), one Fe(18), one Fe(2), one Fe(4), one Fe(6), one Fe(8), and two equivalent Fe(10) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(3)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(11)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(5)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra,  a faceface with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, faces with three equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with three equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(10)Sm3CrFe8 cuboctahedra. In the nineteenth Fe site, Fe(19) is bonded in a distorted single-bond geometry to one Sm(1), one Cr(3), one Fe(1), one Fe(12), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(17), two equivalent Fe(3), and two equivalent Fe(9) atoms. is represented by the CIF card [CIF]
data_Sm4Cr3Fe31
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.394
_cell_length_b   6.394
_cell_length_c   12.832
_cell_angle_alpha   82.486
_cell_angle_beta   82.486
_cell_angle_gamma   82.471
_symmetry_Int_Tables_number   1
_cell_volume   512.223
_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  0.660  0.660  0.329  1.0
  Sm  Sm1  1  0.656  0.656  0.829  1.0
  Sm  Sm2  1  0.344  0.344  0.171  1.0
  Sm  Sm3  1  0.345  0.345  0.674  1.0
  Cr  Cr4  1  0.912  0.912  0.955  1.0
  Cr  Cr5  1  0.088  0.088  0.045  1.0
  Cr  Cr6  1  0.092  0.092  0.546  1.0
  Fe  Fe7  1  0.001  0.001  0.248  1.0
  Fe  Fe8  1  1.000  1.000  0.751  1.0
  Fe  Fe9  1  0.001  0.499  0.501  1.0
  Fe  Fe10  1  1.000  0.501  0.999  1.0
  Fe  Fe11  1  0.501  1.000  0.999  1.0
  Fe  Fe12  1  0.499  0.001  0.501  1.0
  Fe  Fe13  1  0.845  0.341  0.169  1.0
  Fe  Fe14  1  0.845  0.339  0.671  1.0
  Fe  Fe15  1  0.339  0.339  0.423  1.0
  Fe  Fe16  1  0.338  0.338  0.923  1.0
  Fe  Fe17  1  0.341  0.845  0.169  1.0
  Fe  Fe18  1  0.339  0.845  0.671  1.0
  Fe  Fe19  1  0.156  0.659  0.330  1.0
  Fe  Fe20  1  0.155  0.660  0.830  1.0
  Fe  Fe21  1  0.662  0.662  0.076  1.0
  Fe  Fe22  1  0.660  0.660  0.579  1.0
  Fe  Fe23  1  0.659  0.156  0.330  1.0
  Fe  Fe24  1  0.660  0.155  0.830  1.0
  Fe  Fe25  1  0.296  0.702  0.500  1.0
  Fe  Fe26  1  0.294  0.706  1.000  1.0
  Fe  Fe27  1  0.706  1.000  0.146  1.0
  Fe  Fe28  1  0.704  0.999  0.647  1.0
  Fe  Fe29  1  0.999  0.294  0.352  1.0
  Fe  Fe30  1  0.001  0.293  0.854  1.0
  Fe  Fe31  1  0.294  0.999  0.352  1.0
  Fe  Fe32  1  0.293  0.001  0.854  1.0
  Fe  Fe33  1  1.000  0.706  0.146  1.0
  Fe  Fe34  1  0.999  0.704  0.647  1.0
  Fe  Fe35  1  0.702  0.296  0.500  1.0
  Fe  Fe36  1  0.706  0.294  1.000  1.0
  Fe  Fe37  1  0.909  0.909  0.453  1.0
[/CIF]
.
The material described by Sm4Cr3Fe31 crystallizes in the monoclinic Cm space group. There are four inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 19-coordinate geometry to one Fe(1), one Fe(11), one Fe(12), one Fe(19), one Fe(7), two equivalent Fe(13), two equivalent Fe(15), two equivalent Fe(17), two equivalent Fe(3), two equivalent Fe(5), and four equivalent Fe(9) atoms. In the second Sm site, Sm(2) is bonded in a 19-coordinate geometry to one Cr(1), one Fe(11), one Fe(12), one Fe(2), one Fe(8), two equivalent Fe(14), two equivalent Fe(16), two equivalent Fe(18), two equivalent Fe(4), two equivalent Fe(6), and four equivalent Fe(10) atoms. In the third Sm site, Sm(3) is bonded in a 19-coordinate geometry to one Cr(2), one Fe(1), one Fe(11), one Fe(7), one Fe(8), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(17), two equivalent Fe(4), two equivalent Fe(9), and four equivalent Fe(5) atoms. In the fourth Sm site, Sm(4) is bonded in a 19-coordinate geometry to one Cr(3), one Fe(12), one Fe(2), one Fe(7), one Fe(8), two equivalent Fe(10), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(18), two equivalent Fe(3), and four equivalent Fe(6) atoms. There are three inequivalent Cr sites. In the first Cr site, Cr(1) is bonded in a 14-coordinate geometry to one Sm(2), one Cr(2), one Fe(11), one Fe(2), two equivalent Fe(10), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(18), and two equivalent Fe(4) atoms. In the second Cr site, Cr(2) is bonded in a 14-coordinate geometry to one Sm(3), one Cr(1), one Fe(1), one Fe(8), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(18), two equivalent Fe(4), and two equivalent Fe(5) atoms. In the third Cr site, Cr(3) is bonded in a 14-coordinate geometry to one Sm(4), one Fe(19), one Fe(2), one Fe(7), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(17), two equivalent Fe(3), and two equivalent Fe(6) atoms. There are nineteen inequivalent Fe sites. In the first Fe site, Fe(1) is bonded to one Sm(1), one Sm(3), one Cr(2), one Fe(19), two equivalent Fe(15), two equivalent Fe(17), two equivalent Fe(5), and two equivalent Fe(9) atoms to form distorted FeSm2CrFe9 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the second Fe site, Fe(2) is bonded to one Sm(2), one Sm(4), one Cr(1), one Cr(3), two equivalent Fe(10), two equivalent Fe(16), two equivalent Fe(18), and two equivalent Fe(6) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(12)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra. In the third Fe site, Fe(3) is bonded to one Sm(1), one Sm(4), one Cr(3), one Fe(12), one Fe(16), one Fe(17), one Fe(19), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(13) atoms to form distorted FeSm2CrFe9 cuboctahedra that share  a cornercorner with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(11)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the fourth Fe site, Fe(4) is bonded to one Sm(2), one Sm(3), one Cr(1), one Cr(2), one Fe(10), one Fe(11), one Fe(15), one Fe(18), one Fe(5), one Fe(8), and two equivalent Fe(14) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with three equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, and faces with three equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the fifth Fe site, Fe(5) is bonded to one Sm(1), two equivalent Sm(3), one Cr(2), one Fe(1), one Fe(11), one Fe(14), one Fe(17), one Fe(4), one Fe(9), and two equivalent Fe(15) atoms to form FeSm3CrFe8 cuboctahedra that share  a cornercorner with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra, and faces with four equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra. In the sixth Fe site, Fe(6) is bonded to one Sm(2), two equivalent Sm(4), one Cr(3), one Fe(10), one Fe(12), one Fe(13), one Fe(18), one Fe(2), one Fe(3), and two equivalent Fe(16) atoms to form FeSm3CrFe8 cuboctahedra that share  a cornercorner with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra. In the seventh Fe site, Fe(7) is bonded to one Sm(1), one Sm(3), one Sm(4), one Cr(3), two equivalent Fe(13), two equivalent Fe(17), two equivalent Fe(3), and two equivalent Fe(9) atoms to form FeSm3CrFe8 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(12)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(1)Sm2CrFe9 cuboctahedra, corners with four equivalent Fe(9)Sm3Fe9 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the eighth Fe site, Fe(8) is bonded to one Sm(2), one Sm(3), one Sm(4), one Cr(2), two equivalent Fe(10), two equivalent Fe(14), two equivalent Fe(18), and two equivalent Fe(4) atoms to form FeSm3CrFe8 cuboctahedra that share corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(7)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(2)Sm2Cr2Fe8 cuboctahedra, corners with four equivalent Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, faces with four equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the ninth Fe site, Fe(9) is bonded to one Sm(3), two equivalent Sm(1), one Fe(1), one Fe(13), one Fe(15), one Fe(19), one Fe(3), one Fe(5), one Fe(7), and two equivalent Fe(17) atoms to form FeSm3Fe9 cuboctahedra that share  a cornercorner with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(7)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the tenth Fe site, Fe(10) is bonded to one Sm(4), two equivalent Sm(2), one Cr(1), one Fe(14), one Fe(16), one Fe(2), one Fe(4), one Fe(6), one Fe(8), and two equivalent Fe(18) atoms to form FeSm3CrFe8 cuboctahedra that share  a cornercorner with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(4)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(11)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(12)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with four equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the eleventh Fe site, Fe(11) is bonded to one Sm(1), one Sm(2), one Sm(3), one Cr(1), two equivalent Fe(14), two equivalent Fe(15), two equivalent Fe(4), and two equivalent Fe(5) atoms to form FeSm3CrFe8 cuboctahedra that share corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(12)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(1)Sm2CrFe9 cuboctahedra, corners with four equivalent Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra, faces with four equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra. In the twelfth Fe site, Fe(12) is bonded to one Sm(1), one Sm(2), one Sm(4), one Fe(19), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(3), and two equivalent Fe(6) atoms to form FeSm3Fe9 cuboctahedra that share corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(7)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(2)Sm2Cr2Fe8 cuboctahedra, corners with four equivalent Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(8)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, edges with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, edges with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(7)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(3)Sm2CrFe9 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, and faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra. In the thirteenth Fe site, Fe(13) is bonded in a 12-coordinate geometry to one Sm(1), one Sm(4), one Cr(3), one Fe(12), one Fe(16), one Fe(17), one Fe(19), one Fe(6), one Fe(7), one Fe(9), and two equivalent Fe(3) atoms. In the fourteenth Fe site, Fe(14) is bonded to one Sm(2), one Sm(3), one Cr(1), one Cr(2), one Fe(10), one Fe(11), one Fe(15), one Fe(18), one Fe(5), one Fe(8), and two equivalent Fe(4) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(6)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra,  a cornercorner with one Fe(9)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(10)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(5)Sm3CrFe8 cuboctahedra, edges with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(14)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(6)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(9)Sm3Fe9 cuboctahedra, faces with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, faces with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, faces with three equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra, and faces with three equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra. In the fifteenth Fe site, Fe(15) is bonded to one Sm(1), one Sm(3), one Cr(1), one Cr(2), one Fe(1), one Fe(11), one Fe(14), one Fe(15), one Fe(4), one Fe(9), and two equivalent Fe(5) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(3)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(10)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(8)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(5)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(9)Sm3Fe9 cuboctahedra, corners with three equivalent Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(1)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(7)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(9)Sm3Fe9 cuboctahedra,  a faceface with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(1)Sm2CrFe9 cuboctahedra,  a faceface with one Fe(10)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(8)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(11)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(9)Sm3Fe9 cuboctahedra, faces with three equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with three equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(5)Sm3CrFe8 cuboctahedra. In the sixteenth Fe site, Fe(16) is bonded in a 12-coordinate geometry to one Sm(2), one Sm(4), one Cr(3), one Fe(10), one Fe(12), one Fe(13), one Fe(16), one Fe(19), one Fe(2), one Fe(3), and two equivalent Fe(6) atoms. In the seventeenth Fe site, Fe(17) is bonded in a 12-coordinate geometry to one Sm(1), one Sm(3), one Cr(3), one Fe(1), one Fe(13), one Fe(17), one Fe(19), one Fe(3), one Fe(5), one Fe(7), and two equivalent Fe(9) atoms. In the eighteenth Fe site, Fe(18) is bonded to one Sm(2), one Sm(4), one Cr(1), one Cr(2), one Fe(14), one Fe(18), one Fe(2), one Fe(4), one Fe(6), one Fe(8), and two equivalent Fe(10) atoms to form distorted FeSm2Cr2Fe8 cuboctahedra that share  a cornercorner with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a cornercorner with one Fe(1)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(3)Sm2CrFe9 cuboctahedra,  a cornercorner with one Fe(11)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(5)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(7)Sm3CrFe8 cuboctahedra,  a cornercorner with one Fe(12)Sm3Fe9 cuboctahedra, corners with two equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, corners with two equivalent Fe(10)Sm3CrFe8 cuboctahedra, corners with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, corners with three equivalent Fe(18)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  an edgeedge with one Fe(3)Sm2CrFe9 cuboctahedra,  an edgeedge with one Fe(6)Sm3CrFe8 cuboctahedra,  an edgeedge with one Fe(12)Sm3Fe9 cuboctahedra,  a faceface with one Fe(15)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(18)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(2)Sm2Cr2Fe8 cuboctahedra,  a faceface with one Fe(11)Sm3CrFe8 cuboctahedra,  a faceface with one Fe(5)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(6)Sm3CrFe8 cuboctahedra, faces with two equivalent Fe(8)Sm3CrFe8 cuboctahedra, faces with three equivalent Fe(14)Sm2Cr2Fe8 cuboctahedra, faces with three equivalent Fe(4)Sm2Cr2Fe8 cuboctahedra, and faces with four equivalent Fe(10)Sm3CrFe8 cuboctahedra. In the nineteenth Fe site, Fe(19) is bonded in a distorted single-bond geometry to one Sm(1), one Cr(3), one Fe(1), one Fe(12), two equivalent Fe(13), two equivalent Fe(16), two equivalent Fe(17), two equivalent Fe(3), and two equivalent Fe(9) atoms. is represented by the CIF card [CIF]
data_Sm4Cr3Fe31
_symmetry_space_group_name_H-M   'P 1'
_cell_length_a   6.394
_cell_length_b   6.394
_cell_length_c   12.832
_cell_angle_alpha   82.486
_cell_angle_beta   82.486
_cell_angle_gamma   82.471
_symmetry_Int_Tables_number   1
_cell_volume   512.223
_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  0.660  0.660  0.329  1.0
  Sm  Sm1  1  0.656  0.656  0.829  1.0
  Sm  Sm2  1  0.344  0.344  0.171  1.0
  Sm  Sm3  1  0.345  0.345  0.674  1.0
  Cr  Cr4  1  0.912  0.912  0.955  1.0
  Cr  Cr5  1  0.088  0.088  0.045  1.0
  Cr  Cr6  1  0.092  0.092  0.546  1.0
  Fe  Fe7  1  0.001  0.001  0.248  1.0
  Fe  Fe8  1  1.000  1.000  0.751  1.0
  Fe  Fe9  1  0.001  0.499  0.501  1.0
  Fe  Fe10  1  1.000  0.501  0.999  1.0
  Fe  Fe11  1  0.501  1.000  0.999  1.0
  Fe  Fe12  1  0.499  0.001  0.501  1.0
  Fe  Fe13  1  0.845  0.341  0.169  1.0
  Fe  Fe14  1  0.845  0.339  0.671  1.0
  Fe  Fe15  1  0.339  0.339  0.423  1.0
  Fe  Fe16  1  0.338  0.338  0.923  1.0
  Fe  Fe17  1  0.341  0.845  0.169  1.0
  Fe  Fe18  1  0.339  0.845  0.671  1.0
  Fe  Fe19  1  0.156  0.659  0.330  1.0
  Fe  Fe20  1  0.155  0.660  0.830  1.0
  Fe  Fe21  1  0.662  0.662  0.076  1.0
  Fe  Fe22  1  0.660  0.660  0.579  1.0
  Fe  Fe23  1  0.659  0.156  0.330  1.0
  Fe  Fe24  1  0.660  0.155  0.830  1.0
  Fe  Fe25  1  0.296  0.702  0.500  1.0
  Fe  Fe26  1  0.294  0.706  1.000  1.0
  Fe  Fe27  1  0.706  1.000  0.146  1.0
  Fe  Fe28  1  0.704  0.999  0.647  1.0
  Fe  Fe29  1  0.999  0.294  0.352  1.0
  Fe  Fe30  1  0.001  0.293  0.854  1.0
  Fe  Fe31  1  0.294  0.999  0.352  1.0
  Fe  Fe32  1  0.293  0.001  0.854  1.0
  Fe  Fe33  1  1.000  0.706  0.146  1.0
  Fe  Fe34  1  0.999  0.704  0.647  1.0
  Fe  Fe35  1  0.702  0.296  0.500  1.0
  Fe  Fe36  1  0.706  0.294  1.000  1.0
  Fe  Fe37  1  0.909  0.909  0.453  1.0
[/CIF]
.