CsO2 crystallizes in the tetragonal I4/mmm space group. Cs(1) is bonded in a distorted q4 geometry to ten equivalent O(1) atoms. O(1) is bonded to five equivalent Cs(1) and one O(1) atom to form a mixture of distorted face, corner, and edge-sharing OCs5O octahedra. The corner-sharing octahedral tilt angles range from 0-78°.
CsO2 crystallizes in the tetragonal I4/mmm space group. Cs(1) is bonded in a distorted q4 geometry to ten equivalent O(1) atoms. There are two shorter (2.96 Å) and eight longer (3.16 Å) Cs(1)-O(1) bond lengths. O(1) is bonded to five equivalent Cs(1) and one O(1) atom to form a mixture of distorted face, corner, and edge-sharing OCs5O octahedra. The corner-sharing octahedral tilt angles range from 0-78°. The O(1)-O(1) bond length is 1.34 Å.