Al(CuO2)2 is Spinel structured and crystallizes in the cubic Fd-3m space group. Cu(1) is bonded to six equivalent O(1) atoms to form CuO6 octahedra that share corners with six equivalent Al(1)O4 tetrahedra and edges with six equivalent Cu(1)O6 octahedra. Al(1) is bonded to four equivalent O(1) atoms to form AlO4 tetrahedra that share corners with twelve equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. O(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Cu(1) and one Al(1) atom.
Al(CuO2)2 is Spinel structured and crystallizes in the cubic Fd-3m space group. Cu(1) is bonded to six equivalent O(1) atoms to form CuO6 octahedra that share corners with six equivalent Al(1)O4 tetrahedra and edges with six equivalent Cu(1)O6 octahedra. All Cu(1)-O(1) bond lengths are 2.05 Å. Al(1) is bonded to four equivalent O(1) atoms to form AlO4 tetrahedra that share corners with twelve equivalent Cu(1)O6 octahedra. The corner-sharing octahedral tilt angles are 55°. All Al(1)-O(1) bond lengths are 1.81 Å. O(1) is bonded in a distorted rectangular see-saw-like geometry to three equivalent Cu(1) and one Al(1) atom.