Rb2AgPS4 crystallizes in the triclinic P-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(3), one S(4), two equivalent S(2), and three equivalent S(1) atoms. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Ag(1), one S(1), two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms. Ag(1) is bonded in a 4-coordinate geometry to one Rb(2), one S(2), one S(3), and two equivalent S(4) atoms. P(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Rb(2), three equivalent Rb(1), and one P(1) atom to form a mixture of distorted corner and edge-sharing SRb4P square pyramids. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), one Ag(1), and one P(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Rb(2), one Ag(1), and one P(1) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one Rb(1), two equivalent Rb(2), two equivalent Ag(1), and one P(1) atom.
Rb2AgPS4 crystallizes in the triclinic P-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(3), one S(4), two equivalent S(2), and three equivalent S(1) atoms. The Rb(1)-S(3) bond length is 3.53 Å. The Rb(1)-S(4) bond length is 3.43 Å. There is one shorter (3.37 Å) and one longer (3.54 Å) Rb(1)-S(2) bond length. There are a spread of Rb(1)-S(1) bond distances ranging from 3.40-3.53 Å. In the second Rb site, Rb(2) is bonded in a 8-coordinate geometry to one Ag(1), one S(1), two equivalent S(2), two equivalent S(3), and two equivalent S(4) atoms. The Rb(2)-Ag(1) bond length is 3.63 Å. The Rb(2)-S(1) bond length is 3.58 Å. There is one shorter (3.53 Å) and one longer (3.82 Å) Rb(2)-S(2) bond length. There is one shorter (3.41 Å) and one longer (3.56 Å) Rb(2)-S(3) bond length. There is one shorter (3.44 Å) and one longer (3.61 Å) Rb(2)-S(4) bond length. Ag(1) is bonded in a 4-coordinate geometry to one Rb(2), one S(2), one S(3), and two equivalent S(4) atoms. The Ag(1)-S(2) bond length is 2.50 Å. The Ag(1)-S(3) bond length is 2.59 Å. There is one shorter (2.59 Å) and one longer (2.91 Å) Ag(1)-S(4) bond length. P(1) is bonded in a tetrahedral geometry to one S(1), one S(2), one S(3), and one S(4) atom. The P(1)-S(1) bond length is 2.04 Å. The P(1)-S(2) bond length is 2.09 Å. The P(1)-S(3) bond length is 2.06 Å. The P(1)-S(4) bond length is 2.08 Å. There are four inequivalent S sites. In the first S site, S(1) is bonded to one Rb(2), three equivalent Rb(1), and one P(1) atom to form a mixture of distorted corner and edge-sharing SRb4P square pyramids. In the second S site, S(2) is bonded in a 6-coordinate geometry to two equivalent Rb(1), two equivalent Rb(2), one Ag(1), and one P(1) atom. In the third S site, S(3) is bonded in a 5-coordinate geometry to one Rb(1), two equivalent Rb(2), one Ag(1), and one P(1) atom. In the fourth S site, S(4) is bonded in a 6-coordinate geometry to one Rb(1), two equivalent Rb(2), two equivalent Ag(1), and one P(1) atom.