Rb6O crystallizes in the hexagonal P6_3/m space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a single-bond geometry to one Rb(4) and one O(1) atom. In the second Rb site, Rb(2) is bonded in an L-shaped geometry to two equivalent O(1) atoms. In the third Rb site, Rb(3) is bonded in a hexagonal planar geometry to six equivalent Rb(4) atoms. In the fourth Rb site, Rb(4) is bonded in a distorted q6 geometry to three equivalent Rb(1), three equivalent Rb(3), and three equivalent Rb(4) atoms. O(1) is bonded to three equivalent Rb(1) and three equivalent Rb(2) atoms to form face-sharing ORb6 octahedra.
Rb6O crystallizes in the hexagonal P6_3/m space group. There are four inequivalent Rb sites. In the first Rb site, Rb(1) is bonded in a single-bond geometry to one Rb(4) and one O(1) atom. The Rb(1)-Rb(4) bond length is 4.98 Å. The Rb(1)-O(1) bond length is 2.71 Å. In the second Rb site, Rb(2) is bonded in an L-shaped geometry to two equivalent O(1) atoms. Both Rb(2)-O(1) bond lengths are 2.82 Å. In the third Rb site, Rb(3) is bonded in a hexagonal planar geometry to six equivalent Rb(4) atoms. All Rb(3)-Rb(4) bond lengths are 4.95 Å. In the fourth Rb site, Rb(4) is bonded in a distorted q6 geometry to three equivalent Rb(1), three equivalent Rb(3), and three equivalent Rb(4) atoms. All Rb(4)-Rb(4) bond lengths are 5.02 Å. O(1) is bonded to three equivalent Rb(1) and three equivalent Rb(2) atoms to form face-sharing ORb6 octahedra.