Hg2Sn(SBr)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a linear geometry to one S(1) and one S(2) atom. In the second Hg site, Hg(2) is bonded in a distorted linear geometry to one S(1) and two equivalent S(2) atoms. Sn(1) is bonded to one S(1), one S(2), one Br(1), and two equivalent Br(2) atoms to form distorted edge-sharing SnS2Br3 square pyramids. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted trigonal non-coplanar geometry to one Hg(1), one Hg(2), and one Sn(1) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to one Hg(1), two equivalent Hg(2), and one Sn(1) atom. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a single-bond geometry to one Sn(1) atom. In the second Br site, Br(2) is bonded in a water-like geometry to two equivalent Sn(1) atoms.
Hg2Sn(SBr)2 crystallizes in the monoclinic P2_1/c space group. There are two inequivalent Hg sites. In the first Hg site, Hg(1) is bonded in a linear geometry to one S(1) and one S(2) atom. The Hg(1)-S(1) bond length is 2.40 Å. The Hg(1)-S(2) bond length is 2.40 Å. In the second Hg site, Hg(2) is bonded in a distorted linear geometry to one S(1) and two equivalent S(2) atoms. The Hg(2)-S(1) bond length is 2.40 Å. There is one shorter (2.42 Å) and one longer (3.08 Å) Hg(2)-S(2) bond length. Sn(1) is bonded to one S(1), one S(2), one Br(1), and two equivalent Br(2) atoms to form distorted edge-sharing SnS2Br3 square pyramids. The Sn(1)-S(1) bond length is 3.08 Å. The Sn(1)-S(2) bond length is 3.01 Å. The Sn(1)-Br(1) bond length is 2.92 Å. There is one shorter (2.84 Å) and one longer (2.96 Å) Sn(1)-Br(2) bond length. There are two inequivalent S sites. In the first S site, S(1) is bonded in a distorted trigonal non-coplanar geometry to one Hg(1), one Hg(2), and one Sn(1) atom. In the second S site, S(2) is bonded in a 4-coordinate geometry to one Hg(1), two equivalent Hg(2), and one Sn(1) atom. There are two inequivalent Br sites. In the first Br site, Br(1) is bonded in a single-bond geometry to one Sn(1) atom. In the second Br site, Br(2) is bonded in a water-like geometry to two equivalent Sn(1) atoms.