RbAg2SbS4 crystallizes in the trigonal P3_221 space group. Rb(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. Ag(1) is bonded in a distorted rectangular see-saw-like geometry to two equivalent S(1) and two equivalent S(2) atoms. Sb(1) is bonded in a tetrahedral geometry to two equivalent S(1) and two equivalent S(2) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Rb(1), two equivalent Ag(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing SRb2Ag2Sb trigonal bipyramids. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Ag(1), and one Sb(1) atom.
RbAg2SbS4 crystallizes in the trigonal P3_221 space group. Rb(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. There are two shorter (3.39 Å) and two longer (3.46 Å) Rb(1)-S(1) bond lengths. There are two shorter (3.43 Å) and two longer (3.50 Å) Rb(1)-S(2) bond lengths. Ag(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 (2.50 Å) and one longer (2.66 Å) Ag(1)-S(1) bond length. There is one shorter (2.51 Å) and one longer (2.71 Å) Ag(1)-S(2) bond length. Sb(1) is bonded in a tetrahedral geometry to two equivalent S(1) and two equivalent S(2) atoms. Both Sb(1)-S(1) bond lengths are 2.36 Å. Both Sb(1)-S(2) bond lengths are 2.36 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded to two equivalent Rb(1), two equivalent Ag(1), and one Sb(1) atom to form a mixture of distorted corner and edge-sharing SRb2Ag2Sb trigonal bipyramids. In the second S site, S(2) is bonded in a 5-coordinate geometry to two equivalent Rb(1), two equivalent Ag(1), and one Sb(1) atom.