Tl2Sn2S3 crystallizes in the monoclinic C2/c space group. Tl(1) is bonded in a 3-coordinate geometry to three equivalent S(1) atoms. Sn(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent S(1) and two equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(2) is bonded in a 2-coordinate geometry to four equivalent Sn(1) atoms. In the second S site, S(1) is bonded to three equivalent Tl(1) and two equivalent Sn(1) atoms to form a mixture of distorted edge and corner-sharing STl3Sn2 trigonal bipyramids.
Tl2Sn2S3 crystallizes in the monoclinic C2/c space group. Tl(1) is bonded in a 3-coordinate geometry to three equivalent S(1) atoms. There are a spread of Tl(1)-S(1) bond distances ranging from 2.97-3.02 Å. Sn(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent S(1) and two equivalent S(2) atoms. There is one shorter (2.53 Å) and one longer (2.78 Å) Sn(1)-S(1) bond length. There is one shorter (2.59 Å) and one longer (3.08 Å) Sn(1)-S(2) bond length. There are two inequivalent S sites. In the first S site, S(2) is bonded in a 2-coordinate geometry to four equivalent Sn(1) atoms. In the second S site, S(1) is bonded to three equivalent Tl(1) and two equivalent Sn(1) atoms to form a mixture of distorted edge and corner-sharing STl3Sn2 trigonal bipyramids.