Rb(SeO3)2 crystallizes in the orthorhombic P2_12_12_1 space group. Rb(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(6), two equivalent O(4), and two equivalent O(5) atoms. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(1) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(1) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Rb(1) and one Se(2) atom. In the sixth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Se(2) atom.
Rb(SeO3)2 crystallizes in the orthorhombic P2_12_12_1 space group. Rb(1) is bonded in a 8-coordinate geometry to one O(1), one O(2), one O(3), one O(6), two equivalent O(4), and two equivalent O(5) atoms. The Rb(1)-O(1) bond length is 2.96 Å. The Rb(1)-O(2) bond length is 3.01 Å. The Rb(1)-O(3) bond length is 3.14 Å. The Rb(1)-O(6) bond length is 3.21 Å. There is one shorter (2.95 Å) and one longer (3.20 Å) Rb(1)-O(4) bond length. There is one shorter (3.06 Å) and one longer (3.31 Å) Rb(1)-O(5) bond length. There are two inequivalent Se sites. In the first Se site, Se(1) is bonded in a trigonal planar geometry to one O(1), one O(2), and one O(3) atom. The Se(1)-O(1) bond length is 1.65 Å. The Se(1)-O(2) bond length is 1.65 Å. The Se(1)-O(3) bond length is 1.65 Å. In the second Se site, Se(2) is bonded in a trigonal non-coplanar geometry to one O(4), one O(5), and one O(6) atom. The Se(2)-O(4) bond length is 1.67 Å. The Se(2)-O(5) bond length is 1.66 Å. The Se(2)-O(6) bond length is 1.67 Å. There are six inequivalent O sites. In the first O site, O(6) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(2) atom. In the second O site, O(1) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(1) atom. In the third O site, O(2) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(1) atom. In the fourth O site, O(3) is bonded in a distorted single-bond geometry to one Rb(1) and one Se(1) atom. In the fifth O site, O(4) is bonded in a 3-coordinate geometry to two equivalent Rb(1) and one Se(2) atom. In the sixth O site, O(5) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Se(2) atom.