Sm8CrTe13Cl crystallizes in the orthorhombic Cmc2_1 space group. There are eight inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(5), two equivalent Te(10), two equivalent Te(13), and two equivalent Te(9) atoms. In the second Sm site, Sm(2) is bonded in a 8-coordinate geometry to one Te(1), one Te(10), two equivalent Te(11), two equivalent Te(2), and two equivalent Te(3) atoms. In the third Sm site, Sm(3) is bonded to one Te(1), one Te(8), one Te(9), two equivalent Te(3), and two equivalent Te(7) atoms to form distorted SmTe7 pentagonal bipyramids that share corners with two equivalent Cr(1)Te6 octahedra and edges with two equivalent Sm(3)Te7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 48°. In the fourth Sm site, Sm(4) is bonded in a 8-coordinate geometry to one Te(7), two equivalent Te(2), two equivalent Te(6), two equivalent Te(8), and one Cl(1) atom. In the fifth Sm site, Sm(5) is bonded in a 8-coordinate geometry to one Te(12), one Te(2), two equivalent Te(10), two equivalent Te(4), and two equivalent Cl(1) atoms. In the sixth Sm site, Sm(6) is bonded in a 8-coordinate geometry to one Te(4), one Te(5), two equivalent Te(11), two equivalent Te(12), and two equivalent Te(6) atoms. In the seventh Sm site, Sm(7) is bonded in a 8-coordinate geometry to one Te(5), two equivalent Te(12), two equivalent Te(8), two equivalent Te(9), and one Cl(1) atom. In the eighth Sm site, Sm(8) is bonded in a 8-coordinate geometry to one Te(1), one Te(6), two equivalent Te(13), two equivalent Te(4), and two equivalent Te(7) atoms. Cr(1) is bonded to one Te(11), one Te(13), two equivalent Te(1), and two equivalent Te(5) atoms to form CrTe6 octahedra that share corners with two equivalent Sm(3)Te7 pentagonal bipyramids and edges with two equivalent Cr(1)Te6 octahedra. There are thirteen inequivalent Te sites. In the first Te site, Te(1) is bonded to one Sm(2), one Sm(3), one Sm(8), and two equivalent Cr(1) atoms to form distorted TeSm3Cr2 trigonal bipyramids that share  a cornercorner with one Te(8)Sm5 trigonal bipyramid,  a cornercorner with one Te(9)Sm5 trigonal bipyramid, corners with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(11)Sm4Cr square pyramids,  an edgeedge with one Te(5)Sm3Cr2 trigonal bipyramid, edges with two equivalent Te(13)Sm4Cr trigonal bipyramids, and edges with two equivalent Te(7)Sm5 trigonal bipyramids. In the second Te site, Te(2) is bonded in a 5-coordinate geometry to one Sm(5), two equivalent Sm(2), and two equivalent Sm(4) atoms. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to one Sm(1), two equivalent Sm(2), and two equivalent Sm(3) atoms. In the fourth Te site, Te(4) is bonded in a 5-coordinate geometry to one Sm(6), two equivalent Sm(5), and two equivalent Sm(8) atoms. In the fifth Te site, Te(5) is bonded to one Sm(1), one Sm(6), one Sm(7), and two equivalent Cr(1) atoms to form distorted TeSm3Cr2 trigonal bipyramids that share  a cornercorner with one Cl(1)Sm4 tetrahedra, corners with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(8)Sm5 trigonal bipyramids, edges with two equivalent Te(11)Sm4Cr square pyramids,  an edgeedge with one Te(1)Sm3Cr2 trigonal bipyramid, edges with two equivalent Te(13)Sm4Cr trigonal bipyramids, edges with two equivalent Te(12)Sm5 trigonal bipyramids, and edges with two equivalent Te(9)Sm5 trigonal bipyramids. In the sixth Te site, Te(6) is bonded in a 5-coordinate geometry to one Sm(8), two equivalent Sm(4), and two equivalent Sm(6) atoms. In the seventh Te site, Te(7) is bonded to one Sm(4), two equivalent Sm(3), and two equivalent Sm(8) atoms to form distorted TeSm5 trigonal bipyramids that share  a cornercorner with one Cl(1)Sm4 tetrahedra, corners with two equivalent Te(13)Sm4Cr trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids,  an edgeedge with one Te(13)Sm4Cr trigonal bipyramid, edges with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(7)Sm5 trigonal bipyramids, and edges with two equivalent Te(8)Sm5 trigonal bipyramids. In the eighth Te site, Te(8) is bonded to one Sm(3), two equivalent Sm(4), and two equivalent Sm(7) atoms to form distorted TeSm5 trigonal bipyramids that share  a cornercorner with one Te(1)Sm3Cr2 trigonal bipyramid, corners with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(12)Sm5 trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids, edges with two equivalent Cl(1)Sm4 tetrahedra,  an edgeedge with one Te(12)Sm5 trigonal bipyramid, edges with two equivalent Te(7)Sm5 trigonal bipyramids, edges with two equivalent Te(8)Sm5 trigonal bipyramids, and  a faceface with one Te(9)Sm5 trigonal bipyramid. In the ninth Te site, Te(9) is bonded to one Sm(3), two equivalent Sm(1), and two equivalent Sm(7) atoms to form distorted TeSm5 trigonal bipyramids that share corners with two equivalent Cl(1)Sm4 tetrahedra,  a cornercorner with one Te(1)Sm3Cr2 trigonal bipyramid, corners with two equivalent Te(13)Sm4Cr trigonal bipyramids, corners with two equivalent Te(12)Sm5 trigonal bipyramids, corners with two equivalent Te(7)Sm5 trigonal bipyramids, corners with two equivalent Te(8)Sm5 trigonal bipyramids,  an edgeedge with one Te(13)Sm4Cr trigonal bipyramid,  an edgeedge with one Te(12)Sm5 trigonal bipyramid, edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(9)Sm5 trigonal bipyramids, and  a faceface with one Te(8)Sm5 trigonal bipyramid. In the tenth Te site, Te(10) is bonded in a 5-coordinate geometry to one Sm(2), two equivalent Sm(1), and two equivalent Sm(5) atoms. In the eleventh Te site, Te(11) is bonded to two equivalent Sm(2), two equivalent Sm(6), and one Cr(1) atom to form distorted TeSm4Cr square pyramids that share  a cornercorner with one Te(13)Sm4Cr trigonal bipyramid, corners with two equivalent Te(12)Sm5 trigonal bipyramids, edges with two equivalent Te(11)Sm4Cr square pyramids,  an edgeedge with one Te(12)Sm5 trigonal bipyramid, edges with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, and edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids. In the twelfth Te site, Te(12) is bonded to one Sm(5), two equivalent Sm(6), and two equivalent Sm(7) atoms to form distorted TeSm5 trigonal bipyramids that share corners with two equivalent Te(11)Sm4Cr square pyramids, corners with two equivalent Te(8)Sm5 trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids,  an edgeedge with one Te(11)Sm4Cr square pyramid, edges with two equivalent Cl(1)Sm4 tetrahedra,  an edgeedge with one Te(8)Sm5 trigonal bipyramid,  an edgeedge with one Te(9)Sm5 trigonal bipyramid, edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, and edges with two equivalent Te(12)Sm5 trigonal bipyramids. In the thirteenth Te site, Te(13) is bonded to two equivalent Sm(1), two equivalent Sm(8), and one Cr(1) atom to form distorted TeSm4Cr trigonal bipyramids that share  a cornercorner with one Te(11)Sm4Cr square pyramid, corners with two equivalent Te(7)Sm5 trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids,  an edgeedge with one Te(7)Sm5 trigonal bipyramid,  an edgeedge with one Te(9)Sm5 trigonal bipyramid, edges with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, and edges with two equivalent Te(13)Sm4Cr trigonal bipyramids. Cl(1) is bonded to one Sm(4), one Sm(7), and two equivalent Sm(5) atoms to form distorted ClSm4 tetrahedra that share corners with two equivalent Cl(1)Sm4 tetrahedra,  a cornercorner with one Te(5)Sm3Cr2 trigonal bipyramid,  a cornercorner with one Te(7)Sm5 trigonal bipyramid, corners with two equivalent Te(9)Sm5 trigonal bipyramids, edges with two equivalent Te(12)Sm5 trigonal bipyramids, and edges with two equivalent Te(8)Sm5 trigonal bipyramids.
Sm8CrTe13Cl crystallizes in the orthorhombic Cmc2_1 space group. There are eight inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one Te(3), one Te(5), two equivalent Te(10), two equivalent Te(13), and two equivalent Te(9) atoms. The Sm(1)-Te(3) bond length is 3.41 Å. The Sm(1)-Te(5) bond length is 3.54 Å. Both Sm(1)-Te(10) bond lengths are 3.22 Å. Both Sm(1)-Te(13) bond lengths are 3.19 Å. Both Sm(1)-Te(9) bond lengths are 3.17 Å. In the second Sm site, Sm(2) is bonded in a 8-coordinate geometry to one Te(1), one Te(10), two equivalent Te(11), two equivalent Te(2), and two equivalent Te(3) atoms. The Sm(2)-Te(1) bond length is 3.46 Å. The Sm(2)-Te(10) bond length is 3.47 Å. Both Sm(2)-Te(11) bond lengths are 3.22 Å. Both Sm(2)-Te(2) bond lengths are 3.21 Å. Both Sm(2)-Te(3) bond lengths are 3.17 Å. In the third Sm site, Sm(3) is bonded to one Te(1), one Te(8), one Te(9), two equivalent Te(3), and two equivalent Te(7) atoms to form distorted SmTe7 pentagonal bipyramids that share corners with two equivalent Cr(1)Te6 octahedra and edges with two equivalent Sm(3)Te7 pentagonal bipyramids. The corner-sharing octahedral tilt angles are 48°. The Sm(3)-Te(1) bond length is 3.13 Å. The Sm(3)-Te(8) bond length is 3.18 Å. The Sm(3)-Te(9) bond length is 3.23 Å. Both Sm(3)-Te(3) bond lengths are 3.14 Å. Both Sm(3)-Te(7) bond lengths are 3.16 Å. In the fourth Sm site, Sm(4) is bonded in a 8-coordinate geometry to one Te(7), two equivalent Te(2), two equivalent Te(6), two equivalent Te(8), and one Cl(1) atom. The Sm(4)-Te(7) bond length is 3.37 Å. Both Sm(4)-Te(2) bond lengths are 3.19 Å. Both Sm(4)-Te(6) bond lengths are 3.20 Å. Both Sm(4)-Te(8) bond lengths are 3.20 Å. The Sm(4)-Cl(1) bond length is 3.25 Å. In the fifth Sm site, Sm(5) is bonded in a 8-coordinate geometry to one Te(12), one Te(2), two equivalent Te(10), two equivalent Te(4), and two equivalent Cl(1) atoms. The Sm(5)-Te(12) bond length is 3.34 Å. The Sm(5)-Te(2) bond length is 3.38 Å. Both Sm(5)-Te(10) bond lengths are 3.23 Å. Both Sm(5)-Te(4) bond lengths are 3.24 Å. Both Sm(5)-Cl(1) bond lengths are 2.82 Å. In the sixth Sm site, Sm(6) is bonded in a 8-coordinate geometry to one Te(4), one Te(5), two equivalent Te(11), two equivalent Te(12), and two equivalent Te(6) atoms. The Sm(6)-Te(4) bond length is 3.43 Å. The Sm(6)-Te(5) bond length is 3.58 Å. Both Sm(6)-Te(11) bond lengths are 3.21 Å. Both Sm(6)-Te(12) bond lengths are 3.16 Å. Both Sm(6)-Te(6) bond lengths are 3.24 Å. In the seventh Sm site, Sm(7) is bonded in a 8-coordinate geometry to one Te(5), two equivalent Te(12), two equivalent Te(8), two equivalent Te(9), and one Cl(1) atom. The Sm(7)-Te(5) bond length is 3.24 Å. Both Sm(7)-Te(12) bond lengths are 3.15 Å. Both Sm(7)-Te(8) bond lengths are 3.24 Å. Both Sm(7)-Te(9) bond lengths are 3.19 Å. The Sm(7)-Cl(1) bond length is 3.05 Å. In the eighth Sm site, Sm(8) is bonded in a 8-coordinate geometry to one Te(1), one Te(6), two equivalent Te(13), two equivalent Te(4), and two equivalent Te(7) atoms. The Sm(8)-Te(1) bond length is 3.64 Å. The Sm(8)-Te(6) bond length is 3.41 Å. Both Sm(8)-Te(13) bond lengths are 3.20 Å. Both Sm(8)-Te(4) bond lengths are 3.23 Å. Both Sm(8)-Te(7) bond lengths are 3.17 Å. Cr(1) is bonded to one Te(11), one Te(13), two equivalent Te(1), and two equivalent Te(5) atoms to form CrTe6 octahedra that share corners with two equivalent Sm(3)Te7 pentagonal bipyramids and edges with two equivalent Cr(1)Te6 octahedra. The Cr(1)-Te(11) bond length is 2.73 Å. The Cr(1)-Te(13) bond length is 2.74 Å. Both Cr(1)-Te(1) bond lengths are 2.76 Å. Both Cr(1)-Te(5) bond lengths are 2.75 Å. There are thirteen inequivalent Te sites. In the first Te site, Te(1) is bonded to one Sm(2), one Sm(3), one Sm(8), and two equivalent Cr(1) atoms to form distorted TeSm3Cr2 trigonal bipyramids that share  a cornercorner with one Te(8)Sm5 trigonal bipyramid,  a cornercorner with one Te(9)Sm5 trigonal bipyramid, corners with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(11)Sm4Cr square pyramids,  an edgeedge with one Te(5)Sm3Cr2 trigonal bipyramid, edges with two equivalent Te(13)Sm4Cr trigonal bipyramids, and edges with two equivalent Te(7)Sm5 trigonal bipyramids. In the second Te site, Te(2) is bonded in a 5-coordinate geometry to one Sm(5), two equivalent Sm(2), and two equivalent Sm(4) atoms. In the third Te site, Te(3) is bonded in a 5-coordinate geometry to one Sm(1), two equivalent Sm(2), and two equivalent Sm(3) atoms. In the fourth Te site, Te(4) is bonded in a 5-coordinate geometry to one Sm(6), two equivalent Sm(5), and two equivalent Sm(8) atoms. In the fifth Te site, Te(5) is bonded to one Sm(1), one Sm(6), one Sm(7), and two equivalent Cr(1) atoms to form distorted TeSm3Cr2 trigonal bipyramids that share  a cornercorner with one Cl(1)Sm4 tetrahedra, corners with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(8)Sm5 trigonal bipyramids, edges with two equivalent Te(11)Sm4Cr square pyramids,  an edgeedge with one Te(1)Sm3Cr2 trigonal bipyramid, edges with two equivalent Te(13)Sm4Cr trigonal bipyramids, edges with two equivalent Te(12)Sm5 trigonal bipyramids, and edges with two equivalent Te(9)Sm5 trigonal bipyramids. In the sixth Te site, Te(6) is bonded in a 5-coordinate geometry to one Sm(8), two equivalent Sm(4), and two equivalent Sm(6) atoms. In the seventh Te site, Te(7) is bonded to one Sm(4), two equivalent Sm(3), and two equivalent Sm(8) atoms to form distorted TeSm5 trigonal bipyramids that share  a cornercorner with one Cl(1)Sm4 tetrahedra, corners with two equivalent Te(13)Sm4Cr trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids,  an edgeedge with one Te(13)Sm4Cr trigonal bipyramid, edges with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(7)Sm5 trigonal bipyramids, and edges with two equivalent Te(8)Sm5 trigonal bipyramids. In the eighth Te site, Te(8) is bonded to one Sm(3), two equivalent Sm(4), and two equivalent Sm(7) atoms to form distorted TeSm5 trigonal bipyramids that share  a cornercorner with one Te(1)Sm3Cr2 trigonal bipyramid, corners with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, corners with two equivalent Te(12)Sm5 trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids, edges with two equivalent Cl(1)Sm4 tetrahedra,  an edgeedge with one Te(12)Sm5 trigonal bipyramid, edges with two equivalent Te(7)Sm5 trigonal bipyramids, edges with two equivalent Te(8)Sm5 trigonal bipyramids, and  a faceface with one Te(9)Sm5 trigonal bipyramid. In the ninth Te site, Te(9) is bonded to one Sm(3), two equivalent Sm(1), and two equivalent Sm(7) atoms to form distorted TeSm5 trigonal bipyramids that share corners with two equivalent Cl(1)Sm4 tetrahedra,  a cornercorner with one Te(1)Sm3Cr2 trigonal bipyramid, corners with two equivalent Te(13)Sm4Cr trigonal bipyramids, corners with two equivalent Te(12)Sm5 trigonal bipyramids, corners with two equivalent Te(7)Sm5 trigonal bipyramids, corners with two equivalent Te(8)Sm5 trigonal bipyramids,  an edgeedge with one Te(13)Sm4Cr trigonal bipyramid,  an edgeedge with one Te(12)Sm5 trigonal bipyramid, edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(9)Sm5 trigonal bipyramids, and  a faceface with one Te(8)Sm5 trigonal bipyramid. In the tenth Te site, Te(10) is bonded in a 5-coordinate geometry to one Sm(2), two equivalent Sm(1), and two equivalent Sm(5) atoms. In the eleventh Te site, Te(11) is bonded to two equivalent Sm(2), two equivalent Sm(6), and one Cr(1) atom to form distorted TeSm4Cr square pyramids that share  a cornercorner with one Te(13)Sm4Cr trigonal bipyramid, corners with two equivalent Te(12)Sm5 trigonal bipyramids, edges with two equivalent Te(11)Sm4Cr square pyramids,  an edgeedge with one Te(12)Sm5 trigonal bipyramid, edges with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, and edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids. In the twelfth Te site, Te(12) is bonded to one Sm(5), two equivalent Sm(6), and two equivalent Sm(7) atoms to form distorted TeSm5 trigonal bipyramids that share corners with two equivalent Te(11)Sm4Cr square pyramids, corners with two equivalent Te(8)Sm5 trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids,  an edgeedge with one Te(11)Sm4Cr square pyramid, edges with two equivalent Cl(1)Sm4 tetrahedra,  an edgeedge with one Te(8)Sm5 trigonal bipyramid,  an edgeedge with one Te(9)Sm5 trigonal bipyramid, edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, and edges with two equivalent Te(12)Sm5 trigonal bipyramids. In the thirteenth Te site, Te(13) is bonded to two equivalent Sm(1), two equivalent Sm(8), and one Cr(1) atom to form distorted TeSm4Cr trigonal bipyramids that share  a cornercorner with one Te(11)Sm4Cr square pyramid, corners with two equivalent Te(7)Sm5 trigonal bipyramids, corners with two equivalent Te(9)Sm5 trigonal bipyramids,  an edgeedge with one Te(7)Sm5 trigonal bipyramid,  an edgeedge with one Te(9)Sm5 trigonal bipyramid, edges with two equivalent Te(1)Sm3Cr2 trigonal bipyramids, edges with two equivalent Te(5)Sm3Cr2 trigonal bipyramids, and edges with two equivalent Te(13)Sm4Cr trigonal bipyramids. Cl(1) is bonded to one Sm(4), one Sm(7), and two equivalent Sm(5) atoms to form distorted ClSm4 tetrahedra that share corners with two equivalent Cl(1)Sm4 tetrahedra,  a cornercorner with one Te(5)Sm3Cr2 trigonal bipyramid,  a cornercorner with one Te(7)Sm5 trigonal bipyramid, corners with two equivalent Te(9)Sm5 trigonal bipyramids, edges with two equivalent Te(12)Sm5 trigonal bipyramids, and edges with two equivalent Te(8)Sm5 trigonal bipyramids.