Ca(CuO2)2 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ca(1) is bonded to four equivalent O(1) atoms to form CaO4 tetrahedra that share corners with twelve equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. Cu(1) is bonded to six equivalent O(1) atoms to form CuO6 octahedra that share corners with six equivalent Ca(1)O4 tetrahedra and edges with six equivalent Cu(1)O6 octahedra. O(1) is bonded to one Ca(1) and three equivalent Cu(1) atoms to form a mixture of corner and edge-sharing OCaCu3 tetrahedra.
Ca(CuO2)2 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ca(1) is bonded to four equivalent O(1) atoms to form CaO4 tetrahedra that share corners with twelve equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles are 61°. All Ca(1)-O(1) bond lengths are 2.19 Å. Cu(1) is bonded to six equivalent O(1) atoms to form CuO6 octahedra that share corners with six equivalent Ca(1)O4 tetrahedra and edges with six equivalent Cu(1)O6 octahedra. All Cu(1)-O(1) bond lengths are 2.04 Å. O(1) is bonded to one Ca(1) and three equivalent Cu(1) atoms to form a mixture of corner and edge-sharing OCaCu3 tetrahedra.