Sm3SiS6Cl crystallizes in the monoclinic P2_1 space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one S(1), one S(2), one S(6), two equivalent S(4), two equivalent S(5), and one Cl(1) atom. In the second Sm site, Sm(2) is bonded in a 8-coordinate geometry to one S(1), one S(3), one S(5), two equivalent S(2), two equivalent S(6), and one Cl(1) atom. In the third Sm site, Sm(3) is bonded in a 8-coordinate geometry to one S(1), one S(4), one S(5), one S(6), two equivalent S(3), and two equivalent Cl(1) atoms. Si(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted tetrahedral geometry to one Sm(1), one Sm(2), one Sm(3), and one Si(1) atom. In the second S site, S(2) is bonded in a distorted rectangular see-saw-like geometry to one Sm(1), two equivalent Sm(2), and one Si(1) atom. In the third S site, S(3) is bonded in a distorted rectangular see-saw-like geometry to one Sm(2), two equivalent Sm(3), and one Si(1) atom. In the fourth S site, S(4) is bonded in a distorted rectangular see-saw-like geometry to one Sm(3), two equivalent Sm(1), and one Si(1) atom. In the fifth S site, S(5) is bonded in a distorted square co-planar geometry to one Sm(2), one Sm(3), and two equivalent Sm(1) atoms. In the sixth S site, S(6) is bonded in a distorted square co-planar geometry to one Sm(1), one Sm(3), and two equivalent Sm(2) atoms. Cl(1) is bonded in a distorted square co-planar geometry to one Sm(1), one Sm(2), and two equivalent Sm(3) atoms.
Sm3SiS6Cl crystallizes in the monoclinic P2_1 space group. There are three inequivalent Sm sites. In the first Sm site, Sm(1) is bonded in a 8-coordinate geometry to one S(1), one S(2), one S(6), two equivalent S(4), two equivalent S(5), and one Cl(1) atom. The Sm(1)-S(1) bond length is 3.01 Å. The Sm(1)-S(2) bond length is 2.90 Å. The Sm(1)-S(6) bond length is 2.75 Å. There is one shorter (2.90 Å) and one longer (3.04 Å) Sm(1)-S(4) bond length. There is one shorter (2.85 Å) and one longer (3.17 Å) Sm(1)-S(5) bond length. The Sm(1)-Cl(1) bond length is 2.90 Å. In the second Sm site, Sm(2) is bonded in a 8-coordinate geometry to one S(1), one S(3), one S(5), two equivalent S(2), two equivalent S(6), and one Cl(1) atom. The Sm(2)-S(1) bond length is 3.04 Å. The Sm(2)-S(3) bond length is 2.99 Å. The Sm(2)-S(5) bond length is 2.74 Å. There is one shorter (2.85 Å) and one longer (2.96 Å) Sm(2)-S(2) bond length. There is one shorter (2.85 Å) and one longer (3.16 Å) Sm(2)-S(6) bond length. The Sm(2)-Cl(1) bond length is 2.88 Å. In the third Sm site, Sm(3) is bonded in a 8-coordinate geometry to one S(1), one S(4), one S(5), one S(6), two equivalent S(3), and two equivalent Cl(1) atoms. The Sm(3)-S(1) bond length is 3.00 Å. The Sm(3)-S(4) bond length is 2.92 Å. The Sm(3)-S(5) bond length is 2.77 Å. The Sm(3)-S(6) bond length is 2.76 Å. There is one shorter (2.84 Å) and one longer (3.09 Å) Sm(3)-S(3) bond length. There is one shorter (2.85 Å) and one longer (3.14 Å) Sm(3)-Cl(1) bond length. Si(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. The Si(1)-S(1) bond length is 2.11 Å. The Si(1)-S(2) bond length is 2.15 Å. The Si(1)-S(3) bond length is 2.16 Å. The Si(1)-S(4) bond length is 2.14 Å. There are six inequivalent S sites. In the first S site, S(1) is bonded in a distorted tetrahedral geometry to one Sm(1), one Sm(2), one Sm(3), and one Si(1) atom. In the second S site, S(2) is bonded in a distorted rectangular see-saw-like geometry to one Sm(1), two equivalent Sm(2), and one Si(1) atom. In the third S site, S(3) is bonded in a distorted rectangular see-saw-like geometry to one Sm(2), two equivalent Sm(3), and one Si(1) atom. In the fourth S site, S(4) is bonded in a distorted rectangular see-saw-like geometry to one Sm(3), two equivalent Sm(1), and one Si(1) atom. In the fifth S site, S(5) is bonded in a distorted square co-planar geometry to one Sm(2), one Sm(3), and two equivalent Sm(1) atoms. In the sixth S site, S(6) is bonded in a distorted square co-planar geometry to one Sm(1), one Sm(3), and two equivalent Sm(2) atoms. Cl(1) is bonded in a distorted square co-planar geometry to one Sm(1), one Sm(2), and two equivalent Sm(3) atoms.