Rh3In2S2 crystallizes in the trigonal R-3m space group. Rh(1) is bonded to two equivalent In(1), two equivalent In(2), and two equivalent S(1) atoms to form distorted RhIn4S2 octahedra that share corners with two equivalent In(2)Rh6S2 hexagonal bipyramids, corners with twelve equivalent Rh(1)In4S2 octahedra, and faces with four equivalent Rh(1)In4S2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. There are two inequivalent In sites. In the first In site, In(1) is bonded in a distorted hexagonal planar geometry to six equivalent Rh(1) atoms. In the second In site, In(2) is bonded to six equivalent Rh(1) and two equivalent S(1) atoms to form InRh6S2 hexagonal bipyramids that share corners with six equivalent In(2)Rh6S2 hexagonal bipyramids and corners with six equivalent Rh(1)In4S2 octahedra. The corner-sharing octahedral tilt angles are 45°. S(1) is bonded in a 4-coordinate geometry to three equivalent Rh(1) and one In(2) atom.
Rh3In2S2 crystallizes in the trigonal R-3m space group. Rh(1) is bonded to two equivalent In(1), two equivalent In(2), and two equivalent S(1) atoms to form distorted RhIn4S2 octahedra that share corners with two equivalent In(2)Rh6S2 hexagonal bipyramids, corners with twelve equivalent Rh(1)In4S2 octahedra, and faces with four equivalent Rh(1)In4S2 octahedra. The corner-sharing octahedral tilt angles range from 0-61°. Both Rh(1)-In(1) bond lengths are 2.79 Å. Both Rh(1)-In(2) bond lengths are 2.82 Å. Both Rh(1)-S(1) bond lengths are 2.29 Å. There are two inequivalent In sites. In the first In site, In(1) is bonded in a distorted hexagonal planar geometry to six equivalent Rh(1) atoms. In the second In site, In(2) is bonded to six equivalent Rh(1) and two equivalent S(1) atoms to form InRh6S2 hexagonal bipyramids that share corners with six equivalent In(2)Rh6S2 hexagonal bipyramids and corners with six equivalent Rh(1)In4S2 octahedra. The corner-sharing octahedral tilt angles are 45°. Both In(2)-S(1) bond lengths are 2.93 Å. S(1) is bonded in a 4-coordinate geometry to three equivalent Rh(1) and one In(2) atom.