Rb3SbS3 crystallizes in the cubic P2_13 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. Sb(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent S(1) atoms. S(1) is bonded to two equivalent Rb(1), two equivalent Rb(2), two equivalent Rb(3), and one Sb(1) atom to form a mixture of distorted face, corner, and edge-sharing SRb6Sb pentagonal bipyramids.
Rb3SbS3 crystallizes in the cubic P2_13 space group. There are three inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. There are three shorter (3.30 Å) and three longer (3.44 Å) Rb(1)-S(1) bond lengths. In the second Rb site, Rb(2) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. There are three shorter (3.29 Å) and three longer (3.47 Å) Rb(2)-S(1) bond lengths. In the third Rb site, Rb(3) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. There are three shorter (3.62 Å) and three longer (3.68 Å) Rb(3)-S(1) bond lengths. Sb(1) is bonded in a distorted trigonal non-coplanar geometry to three equivalent S(1) atoms. All Sb(1)-S(1) bond lengths are 2.44 Å. S(1) is bonded to two equivalent Rb(1), two equivalent Rb(2), two equivalent Rb(3), and one Sb(1) atom to form a mixture of distorted face, corner, and edge-sharing SRb6Sb pentagonal bipyramids.