Rb2PtO2I5 crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(1), one I(4), and three equivalent I(3) atoms. Pt(1) is bonded to one I(1), one I(2), two equivalent I(3), and two equivalent I(4) atoms to form corner-sharing PtI6 octahedra. The corner-sharing octahedral tilt angles are 19°. O(1) is bonded in a 3-coordinate geometry to two equivalent Rb(1) and one I(2) atom. There are four inequivalent I sites. In the first I site, I(1) is bonded in a single-bond geometry to one Pt(1) atom. In the second I site, I(2) is bonded in a distorted trigonal non-coplanar geometry to one Pt(1) and two equivalent O(1) atoms. In the third I site, I(3) is bonded in a 4-coordinate geometry to three equivalent Rb(1) and one Pt(1) atom. In the fourth I site, I(4) is bonded in a distorted see-saw-like geometry to two equivalent Rb(1) and two equivalent Pt(1) atoms.
Rb2PtO2I5 crystallizes in the orthorhombic Cmc2_1 space group. Rb(1) is bonded in a 6-coordinate geometry to two equivalent O(1), one I(4), and three equivalent I(3) atoms. There is one shorter (2.88 Å) and one longer (3.40 Å) Rb(1)-O(1) bond length. The Rb(1)-I(4) bond length is 3.73 Å. There are a spread of Rb(1)-I(3) bond distances ranging from 3.50-3.82 Å. Pt(1) is bonded to one I(1), one I(2), two equivalent I(3), and two equivalent I(4) atoms to form corner-sharing PtI6 octahedra. The corner-sharing octahedral tilt angles are 19°. The Pt(1)-I(1) bond length is 2.72 Å. The Pt(1)-I(2) bond length is 2.70 Å. Both Pt(1)-I(3) bond lengths are 2.67 Å. There is one shorter (2.94 Å) and one longer (3.23 Å) Pt(1)-I(4) bond length. O(1) is bonded in a 3-coordinate geometry to two equivalent Rb(1) and one I(2) atom. The O(1)-I(2) bond length is 1.84 Å. There are four inequivalent I sites. In the first I site, I(1) is bonded in a single-bond geometry to one Pt(1) atom. In the second I site, I(2) is bonded in a distorted trigonal non-coplanar geometry to one Pt(1) and two equivalent O(1) atoms. In the third I site, I(3) is bonded in a 4-coordinate geometry to three equivalent Rb(1) and one Pt(1) atom. In the fourth I site, I(4) is bonded in a distorted see-saw-like geometry to two equivalent Rb(1) and two equivalent Pt(1) atoms.