Rb2S3 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one S(2) and six equivalent S(1) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to two equivalent S(2) and six equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to three equivalent Rb(1), three equivalent Rb(2), and one S(2) atom. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Rb(2), and two equivalent S(1) atoms.
Rb2S3 crystallizes in the orthorhombic Cmc2_1 space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 7-coordinate geometry to one S(2) and six equivalent S(1) atoms. The Rb(1)-S(2) bond length is 3.33 Å. There are a spread of Rb(1)-S(1) bond distances ranging from 3.46-3.48 Å. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to two equivalent S(2) and six equivalent S(1) atoms. There is one shorter (3.26 Å) and one longer (3.74 Å) Rb(2)-S(2) bond length. There are a spread of Rb(2)-S(1) bond distances ranging from 3.35-3.47 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to three equivalent Rb(1), three equivalent Rb(2), and one S(2) atom. The S(1)-S(2) bond length is 2.09 Å. In the second S site, S(2) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Rb(2), and two equivalent S(1) atoms.