RbAu(SeO4)2 crystallizes in the monoclinic C2/m space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(3) atoms. Au(1) is bonded in a square co-planar geometry to four equivalent O(3) atoms. Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rb(1) and one Se(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one Au(1), and one Se(1) atom.
RbAu(SeO4)2 crystallizes in the monoclinic C2/m space group. Rb(1) is bonded in a 10-coordinate geometry to two equivalent O(2), four equivalent O(1), and four equivalent O(3) atoms. Both Rb(1)-O(2) bond lengths are 2.95 Å. All Rb(1)-O(1) bond lengths are 3.11 Å. All Rb(1)-O(3) bond lengths are 3.41 Å. Au(1) is bonded in a square co-planar geometry to four equivalent O(3) atoms. All Au(1)-O(3) bond lengths are 2.03 Å. Se(1) is bonded in a tetrahedral geometry to one O(1), one O(2), and two equivalent O(3) atoms. The Se(1)-O(1) bond length is 1.64 Å. The Se(1)-O(2) bond length is 1.64 Å. Both Se(1)-O(3) bond lengths are 1.75 Å. There are three inequivalent O sites. In the first O site, O(1) is bonded in a distorted single-bond geometry to two equivalent Rb(1) and one Se(1) atom. In the second O site, O(2) is bonded in a distorted bent 150 degrees geometry to one Rb(1) and one Se(1) atom. In the third O site, O(3) is bonded in a distorted bent 120 degrees geometry to one Rb(1), one Au(1), and one Se(1) atom.