RbKO crystallizes in the tetragonal I4/mmm space group. Rb(1) is bonded in a distorted see-saw-like geometry to four equivalent O(1) atoms. K(1) is bonded in a linear geometry to two equivalent O(1) atoms. O(1) is bonded to four equivalent Rb(1) and two equivalent K(1) atoms to form a mixture of distorted corner and edge-sharing OK2Rb4 octahedra. The corner-sharing octahedral tilt angles range from 11-25°.
RbKO crystallizes in the tetragonal I4/mmm space group. Rb(1) is bonded in a distorted see-saw-like geometry to four equivalent O(1) atoms. There are two shorter (2.95 Å) and two longer (2.96 Å) Rb(1)-O(1) bond lengths. K(1) is bonded in a linear geometry to two equivalent O(1) atoms. Both K(1)-O(1) bond lengths are 2.55 Å. O(1) is bonded to four equivalent Rb(1) and two equivalent K(1) atoms to form a mixture of distorted corner and edge-sharing OK2Rb4 octahedra. The corner-sharing octahedral tilt angles range from 11-25°.