Rb2U(PtS2)3 crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to two equivalent S(2) and eight equivalent S(1) atoms. U(1) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a square co-planar geometry to two equivalent S(1) and two equivalent S(2) atoms. In the second Pt site, Pt(2) is bonded in a square co-planar geometry to four equivalent S(1) atoms. There are two inequivalent S sites. In the first S site, S(1) is bonded to one Rb(1), two equivalent Rb(2), one U(1), one Pt(1), and one Pt(2) atom to form a mixture of distorted edge, face, and corner-sharing SRb3UPt2 octahedra. The corner-sharing octahedral tilt angles range from 9-97°. In the second S site, S(2) is bonded to one Rb(2), two equivalent Rb(1), one U(1), and two equivalent Pt(1) atoms to form a mixture of distorted edge, face, and corner-sharing SRb3UPt2 octahedra. The corner-sharing octahedral tilt angles range from 9-77°.
Rb2U(PtS2)3 crystallizes in the orthorhombic Fmmm space group. There are two inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a 8-coordinate geometry to four equivalent S(1) and four equivalent S(2) atoms. All Rb(1)-S(1) bond lengths are 3.30 Å. All Rb(1)-S(2) bond lengths are 3.30 Å. In the second Rb site, Rb(2) is bonded in a 10-coordinate geometry to two equivalent S(2) and eight equivalent S(1) atoms. Both Rb(2)-S(2) bond lengths are 3.63 Å. There are four shorter (3.69 Å) and four longer (3.82 Å) Rb(2)-S(1) bond lengths. U(1) is bonded in a 6-coordinate geometry to two equivalent S(2) and four equivalent S(1) atoms. Both U(1)-S(2) bond lengths are 2.74 Å. All U(1)-S(1) bond lengths are 2.72 Å. There are two inequivalent Pt sites. In the first Pt site, Pt(1) is bonded in a square co-planar geometry to two equivalent S(1) and two equivalent S(2) atoms. Both Pt(1)-S(1) bond lengths are 2.38 Å. Both Pt(1)-S(2) bond lengths are 2.37 Å. In the second Pt site, Pt(2) is bonded in a square co-planar geometry to four equivalent S(1) atoms. All Pt(2)-S(1) bond lengths are 2.37 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded to one Rb(1), two equivalent Rb(2), one U(1), one Pt(1), and one Pt(2) atom to form a mixture of distorted edge, face, and corner-sharing SRb3UPt2 octahedra. The corner-sharing octahedral tilt angles range from 9-97°. In the second S site, S(2) is bonded to one Rb(2), two equivalent Rb(1), one U(1), and two equivalent Pt(1) atoms to form a mixture of distorted edge, face, and corner-sharing SRb3UPt2 octahedra. The corner-sharing octahedral tilt angles range from 9-77°.