ThScFe6 crystallizes in the trigonal R3m space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a 15-coordinate geometry to three equivalent Sc(2), three equivalent Fe(10), three equivalent Fe(2), and six equivalent Fe(4) atoms. In the second Th site, Th(2) is bonded in a distorted hexagonal planar geometry to one Sc(2), three equivalent Fe(5), three equivalent Fe(8), six equivalent Fe(2), and six equivalent Fe(3) atoms. In the third Th site, Th(3) is bonded in a 6-coordinate geometry to three equivalent Fe(6), three equivalent Fe(7), six equivalent Fe(1), and six equivalent Fe(4) atoms. There are three inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 12-coordinate geometry to three equivalent Fe(3), three equivalent Fe(9), and six equivalent Fe(1) atoms. In the second Sc site, Sc(2) is bonded in a 16-coordinate geometry to one Th(2), three equivalent Th(1), three equivalent Fe(10), three equivalent Fe(4), and six equivalent Fe(2) atoms. In the third Sc site, Sc(3) is bonded in a 12-coordinate geometry to three equivalent Fe(1), three equivalent Fe(9), and six equivalent Fe(3) atoms. There are ten inequivalent Fe sites. In the first Fe site, Fe(7) is bonded to three equivalent Th(3), three equivalent Fe(1), three equivalent Fe(4), and three equivalent Fe(6) atoms to form distorted FeTh3Fe9 cuboctahedra that share corners with three equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with six equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with six equivalent Fe(7)Th3Fe9 cuboctahedra,  a faceface with one Fe(10)Th3Sc3Fe6 cuboctahedra, faces with nine equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(4)Th4ScFe7 cuboctahedra. In the second Fe site, Fe(8) is bonded to three equivalent Th(2), three equivalent Fe(2), three equivalent Fe(3), and three equivalent Fe(5) atoms to form distorted FeTh3Fe9 cuboctahedra that share corners with three equivalent Fe(5)Th3Fe9 cuboctahedra, corners with three equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with six equivalent Fe(8)Th3Fe9 cuboctahedra,  a faceface with one Fe(9)Sc6Fe6 cuboctahedra, faces with three equivalent Fe(5)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(2)Th3Sc2Fe7 cuboctahedra. In the third Fe site, Fe(9) is bonded to three equivalent Sc(1), three equivalent Sc(3), three equivalent Fe(1), and three equivalent Fe(3) atoms to form FeSc6Fe6 cuboctahedra that share corners with three equivalent Fe(5)Th3Fe9 cuboctahedra, corners with three equivalent Fe(7)Th3Fe9 cuboctahedra, corners with six equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with six equivalent Fe(9)Sc6Fe6 cuboctahedra,  a faceface with one Fe(8)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(3)Th2Sc3Fe7 cuboctahedra. In the fourth Fe site, Fe(10) is bonded to three equivalent Th(1), three equivalent Sc(2), three equivalent Fe(2), and three equivalent Fe(4) atoms to form FeTh3Sc3Fe6 cuboctahedra that share corners with three equivalent Fe(8)Th3Fe9 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, corners with six equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with six equivalent Fe(10)Th3Sc3Fe6 cuboctahedra,  a faceface with one Fe(5)Th3Fe9 cuboctahedra,  a faceface with one Fe(7)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, and faces with nine equivalent Fe(4)Th4ScFe7 cuboctahedra. In the fifth Fe site, Fe(1) is bonded to two equivalent Th(3), one Sc(3), two equivalent Sc(1), one Fe(6), one Fe(7), one Fe(9), and four equivalent Fe(1) atoms to form FeTh2Sc3Fe7 cuboctahedra that share corners with two equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with two equivalent Fe(7)Th3Fe9 cuboctahedra, corners with four equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with five equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with two equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with four equivalent Fe(4)Th4ScFe7 cuboctahedra,  a faceface with one Fe(4)Th4ScFe7 cuboctahedra, faces with two equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, faces with three equivalent Fe(9)Sc6Fe6 cuboctahedra, faces with three equivalent Fe(7)Th3Fe9 cuboctahedra, and faces with eight equivalent Fe(1)Th2Sc3Fe7 cuboctahedra. In the sixth Fe site, Fe(2) is bonded to one Th(1), two equivalent Th(2), two equivalent Sc(2), one Fe(10), one Fe(5), one Fe(8), and four equivalent Fe(2) atoms to form distorted FeTh3Sc2Fe7 cuboctahedra that share corners with two equivalent Fe(5)Th3Fe9 cuboctahedra, corners with two equivalent Fe(8)Th3Fe9 cuboctahedra, corners with two equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, corners with four equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, corners with five equivalent Fe(4)Th4ScFe7 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with two equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with four equivalent Fe(3)Th2Sc3Fe7 cuboctahedra,  a faceface with one Fe(3)Th2Sc3Fe7 cuboctahedra, faces with two equivalent Fe(4)Th4ScFe7 cuboctahedra, faces with three equivalent Fe(5)Th3Fe9 cuboctahedra, faces with three equivalent Fe(8)Th3Fe9 cuboctahedra, faces with three equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, and faces with eight equivalent Fe(2)Th3Sc2Fe7 cuboctahedra. In the seventh Fe site, Fe(3) is bonded to two equivalent Th(2), one Sc(1), two equivalent Sc(3), one Fe(5), one Fe(8), one Fe(9), and four equivalent Fe(3) atoms to form FeTh2Sc3Fe7 cuboctahedra that share corners with two equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with two equivalent Fe(5)Th3Fe9 cuboctahedra, corners with two equivalent Fe(8)Th3Fe9 cuboctahedra, corners with four equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with five equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with two equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with four equivalent Fe(2)Th3Sc2Fe7 cuboctahedra,  a faceface with one Fe(2)Th3Sc2Fe7 cuboctahedra, faces with two equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, faces with three equivalent Fe(9)Sc6Fe6 cuboctahedra, faces with three equivalent Fe(5)Th3Fe9 cuboctahedra, faces with three equivalent Fe(8)Th3Fe9 cuboctahedra, and faces with eight equivalent Fe(3)Th2Sc3Fe7 cuboctahedra. In the eighth Fe site, Fe(4) is bonded to two equivalent Th(1), two equivalent Th(3), one Sc(2), one Fe(10), one Fe(6), one Fe(7), and four equivalent Fe(4) atoms to form distorted FeTh4ScFe7 cuboctahedra that share corners with two equivalent Fe(7)Th3Fe9 cuboctahedra, corners with two equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, corners with four equivalent Fe(4)Th4ScFe7 cuboctahedra, corners with five equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, corners with six equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with two equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with four equivalent Fe(1)Th2Sc3Fe7 cuboctahedra,  a faceface with one Fe(1)Th2Sc3Fe7 cuboctahedra, faces with two equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, faces with three equivalent Fe(7)Th3Fe9 cuboctahedra, faces with three equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, and faces with eight equivalent Fe(4)Th4ScFe7 cuboctahedra. In the ninth Fe site, Fe(5) is bonded to three equivalent Th(2), three equivalent Fe(2), three equivalent Fe(3), and three equivalent Fe(8) atoms to form distorted FeTh3Fe9 cuboctahedra that share corners with three equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with three equivalent Fe(8)Th3Fe9 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with six equivalent Fe(5)Th3Fe9 cuboctahedra,  a faceface with one Fe(10)Th3Sc3Fe6 cuboctahedra, faces with three equivalent Fe(8)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(2)Th3Sc2Fe7 cuboctahedra. In the tenth Fe site, Fe(6) is bonded in a 12-coordinate geometry to three equivalent Th(3), three equivalent Fe(1), three equivalent Fe(4), and three equivalent Fe(7) atoms.
ThScFe6 crystallizes in the trigonal R3m space group. There are three inequivalent Th sites. In the first Th site, Th(1) is bonded in a 15-coordinate geometry to three equivalent Sc(2), three equivalent Fe(10), three equivalent Fe(2), and six equivalent Fe(4) atoms. All Th(1)-Sc(2) bond lengths are 3.20 Å. All Th(1)-Fe(10) bond lengths are 3.01 Å. All Th(1)-Fe(2) bond lengths are 3.08 Å. All Th(1)-Fe(4) bond lengths are 2.93 Å. In the second Th site, Th(2) is bonded in a distorted hexagonal planar geometry to one Sc(2), three equivalent Fe(5), three equivalent Fe(8), six equivalent Fe(2), and six equivalent Fe(3) atoms. The Th(2)-Sc(2) bond length is 3.49 Å. All Th(2)-Fe(5) bond lengths are 2.93 Å. All Th(2)-Fe(8) bond lengths are 2.93 Å. All Th(2)-Fe(2) bond lengths are 3.28 Å. All Th(2)-Fe(3) bond lengths are 3.26 Å. In the third Th site, Th(3) is bonded in a 6-coordinate geometry to three equivalent Fe(6), three equivalent Fe(7), six equivalent Fe(1), and six equivalent Fe(4) atoms. All Th(3)-Fe(6) bond lengths are 2.93 Å. All Th(3)-Fe(7) bond lengths are 2.93 Å. All Th(3)-Fe(1) bond lengths are 3.19 Å. All Th(3)-Fe(4) bond lengths are 3.36 Å. There are three inequivalent Sc sites. In the first Sc site, Sc(1) is bonded in a 12-coordinate geometry to three equivalent Fe(3), three equivalent Fe(9), and six equivalent Fe(1) atoms. All Sc(1)-Fe(3) bond lengths are 2.90 Å. All Sc(1)-Fe(9) bond lengths are 2.98 Å. All Sc(1)-Fe(1) bond lengths are 2.93 Å. In the second Sc site, Sc(2) is bonded in a 16-coordinate geometry to one Th(2), three equivalent Th(1), three equivalent Fe(10), three equivalent Fe(4), and six equivalent Fe(2) atoms. All Sc(2)-Fe(10) bond lengths are 3.00 Å. All Sc(2)-Fe(4) bond lengths are 3.12 Å. All Sc(2)-Fe(2) bond lengths are 2.91 Å. In the third Sc site, Sc(3) is bonded in a 12-coordinate geometry to three equivalent Fe(1), three equivalent Fe(9), and six equivalent Fe(3) atoms. All Sc(3)-Fe(1) bond lengths are 2.92 Å. All Sc(3)-Fe(9) bond lengths are 2.98 Å. All Sc(3)-Fe(3) bond lengths are 2.92 Å. There are ten inequivalent Fe sites. In the first Fe site, Fe(7) is bonded to three equivalent Th(3), three equivalent Fe(1), three equivalent Fe(4), and three equivalent Fe(6) atoms to form distorted FeTh3Fe9 cuboctahedra that share corners with three equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with six equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with six equivalent Fe(7)Th3Fe9 cuboctahedra,  a faceface with one Fe(10)Th3Sc3Fe6 cuboctahedra, faces with nine equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(4)Th4ScFe7 cuboctahedra. All Fe(7)-Fe(1) bond lengths are 2.52 Å. All Fe(7)-Fe(4) bond lengths are 2.53 Å. All Fe(7)-Fe(6) bond lengths are 2.93 Å. In the second Fe site, Fe(8) is bonded to three equivalent Th(2), three equivalent Fe(2), three equivalent Fe(3), and three equivalent Fe(5) atoms to form distorted FeTh3Fe9 cuboctahedra that share corners with three equivalent Fe(5)Th3Fe9 cuboctahedra, corners with three equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with six equivalent Fe(8)Th3Fe9 cuboctahedra,  a faceface with one Fe(9)Sc6Fe6 cuboctahedra, faces with three equivalent Fe(5)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(2)Th3Sc2Fe7 cuboctahedra. All Fe(8)-Fe(2) bond lengths are 2.51 Å. All Fe(8)-Fe(3) bond lengths are 2.54 Å. All Fe(8)-Fe(5) bond lengths are 2.93 Å. In the third Fe site, Fe(9) is bonded to three equivalent Sc(1), three equivalent Sc(3), three equivalent Fe(1), and three equivalent Fe(3) atoms to form FeSc6Fe6 cuboctahedra that share corners with three equivalent Fe(5)Th3Fe9 cuboctahedra, corners with three equivalent Fe(7)Th3Fe9 cuboctahedra, corners with six equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with six equivalent Fe(9)Sc6Fe6 cuboctahedra,  a faceface with one Fe(8)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(3)Th2Sc3Fe7 cuboctahedra. All Fe(9)-Fe(1) bond lengths are 2.47 Å. All Fe(9)-Fe(3) bond lengths are 2.46 Å. In the fourth Fe site, Fe(10) is bonded to three equivalent Th(1), three equivalent Sc(2), three equivalent Fe(2), and three equivalent Fe(4) atoms to form FeTh3Sc3Fe6 cuboctahedra that share corners with three equivalent Fe(8)Th3Fe9 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, corners with six equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with six equivalent Fe(10)Th3Sc3Fe6 cuboctahedra,  a faceface with one Fe(5)Th3Fe9 cuboctahedra,  a faceface with one Fe(7)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, and faces with nine equivalent Fe(4)Th4ScFe7 cuboctahedra. All Fe(10)-Fe(2) bond lengths are 2.51 Å. All Fe(10)-Fe(4) bond lengths are 2.58 Å. In the fifth Fe site, Fe(1) is bonded to two equivalent Th(3), one Sc(3), two equivalent Sc(1), one Fe(6), one Fe(7), one Fe(9), and four equivalent Fe(1) atoms to form FeTh2Sc3Fe7 cuboctahedra that share corners with two equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with two equivalent Fe(7)Th3Fe9 cuboctahedra, corners with four equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with five equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with two equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with four equivalent Fe(4)Th4ScFe7 cuboctahedra,  a faceface with one Fe(4)Th4ScFe7 cuboctahedra, faces with two equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, faces with three equivalent Fe(9)Sc6Fe6 cuboctahedra, faces with three equivalent Fe(7)Th3Fe9 cuboctahedra, and faces with eight equivalent Fe(1)Th2Sc3Fe7 cuboctahedra. The Fe(1)-Fe(6) bond length is 2.55 Å. There are two shorter (2.53 Å) and two longer (2.54 Å) Fe(1)-Fe(1) bond lengths. In the sixth Fe site, Fe(2) is bonded to one Th(1), two equivalent Th(2), two equivalent Sc(2), one Fe(10), one Fe(5), one Fe(8), and four equivalent Fe(2) atoms to form distorted FeTh3Sc2Fe7 cuboctahedra that share corners with two equivalent Fe(5)Th3Fe9 cuboctahedra, corners with two equivalent Fe(8)Th3Fe9 cuboctahedra, corners with two equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, corners with four equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, corners with five equivalent Fe(4)Th4ScFe7 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with two equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with four equivalent Fe(3)Th2Sc3Fe7 cuboctahedra,  a faceface with one Fe(3)Th2Sc3Fe7 cuboctahedra, faces with two equivalent Fe(4)Th4ScFe7 cuboctahedra, faces with three equivalent Fe(5)Th3Fe9 cuboctahedra, faces with three equivalent Fe(8)Th3Fe9 cuboctahedra, faces with three equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, and faces with eight equivalent Fe(2)Th3Sc2Fe7 cuboctahedra. The Fe(2)-Fe(5) bond length is 2.53 Å. All Fe(2)-Fe(2) bond lengths are 2.54 Å. In the seventh Fe site, Fe(3) is bonded to two equivalent Th(2), one Sc(1), two equivalent Sc(3), one Fe(5), one Fe(8), one Fe(9), and four equivalent Fe(3) atoms to form FeTh2Sc3Fe7 cuboctahedra that share corners with two equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with two equivalent Fe(5)Th3Fe9 cuboctahedra, corners with two equivalent Fe(8)Th3Fe9 cuboctahedra, corners with four equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with five equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with two equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, edges with four equivalent Fe(2)Th3Sc2Fe7 cuboctahedra,  a faceface with one Fe(2)Th3Sc2Fe7 cuboctahedra, faces with two equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, faces with three equivalent Fe(9)Sc6Fe6 cuboctahedra, faces with three equivalent Fe(5)Th3Fe9 cuboctahedra, faces with three equivalent Fe(8)Th3Fe9 cuboctahedra, and faces with eight equivalent Fe(3)Th2Sc3Fe7 cuboctahedra. The Fe(3)-Fe(5) bond length is 2.52 Å. All Fe(3)-Fe(3) bond lengths are 2.54 Å. In the eighth Fe site, Fe(4) is bonded to two equivalent Th(1), two equivalent Th(3), one Sc(2), one Fe(10), one Fe(6), one Fe(7), and four equivalent Fe(4) atoms to form distorted FeTh4ScFe7 cuboctahedra that share corners with two equivalent Fe(7)Th3Fe9 cuboctahedra, corners with two equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, corners with four equivalent Fe(4)Th4ScFe7 cuboctahedra, corners with five equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, corners with six equivalent Fe(1)Th2Sc3Fe7 cuboctahedra, edges with two equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with two equivalent Fe(4)Th4ScFe7 cuboctahedra, edges with four equivalent Fe(1)Th2Sc3Fe7 cuboctahedra,  a faceface with one Fe(1)Th2Sc3Fe7 cuboctahedra, faces with two equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, faces with three equivalent Fe(7)Th3Fe9 cuboctahedra, faces with three equivalent Fe(10)Th3Sc3Fe6 cuboctahedra, and faces with eight equivalent Fe(4)Th4ScFe7 cuboctahedra. The Fe(4)-Fe(6) bond length is 2.52 Å. There are two shorter (2.53 Å) and two longer (2.55 Å) Fe(4)-Fe(4) bond lengths. In the ninth Fe site, Fe(5) is bonded to three equivalent Th(2), three equivalent Fe(2), three equivalent Fe(3), and three equivalent Fe(8) atoms to form distorted FeTh3Fe9 cuboctahedra that share corners with three equivalent Fe(9)Sc6Fe6 cuboctahedra, corners with three equivalent Fe(8)Th3Fe9 cuboctahedra, corners with six equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, corners with six equivalent Fe(2)Th3Sc2Fe7 cuboctahedra, edges with six equivalent Fe(5)Th3Fe9 cuboctahedra,  a faceface with one Fe(10)Th3Sc3Fe6 cuboctahedra, faces with three equivalent Fe(8)Th3Fe9 cuboctahedra, faces with nine equivalent Fe(3)Th2Sc3Fe7 cuboctahedra, and faces with nine equivalent Fe(2)Th3Sc2Fe7 cuboctahedra. In the tenth Fe site, Fe(6) is bonded in a 12-coordinate geometry to three equivalent Th(3), three equivalent Fe(1), three equivalent Fe(4), and three equivalent Fe(7) atoms.