Cu(NiO2)2 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ni(1) is bonded to six equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent Cu(1)O4 tetrahedra and edges with six equivalent Ni(1)O6 octahedra. Cu(1) is bonded to four equivalent O(1) atoms to form CuO4 tetrahedra that share corners with twelve equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 58°. O(1) is bonded to three equivalent Ni(1) and one Cu(1) atom to form a mixture of distorted corner and edge-sharing OCuNi3 trigonal pyramids.
Cu(NiO2)2 is Spinel structured and crystallizes in the cubic Fd-3m space group. Ni(1) is bonded to six equivalent O(1) atoms to form NiO6 octahedra that share corners with six equivalent Cu(1)O4 tetrahedra and edges with six equivalent Ni(1)O6 octahedra. All Ni(1)-O(1) bond lengths are 1.99 Å. Cu(1) is bonded to four equivalent O(1) atoms to form CuO4 tetrahedra that share corners with twelve equivalent Ni(1)O6 octahedra. The corner-sharing octahedral tilt angles are 58°. All Cu(1)-O(1) bond lengths are 1.92 Å. O(1) is bonded to three equivalent Ni(1) and one Cu(1) atom to form a mixture of distorted corner and edge-sharing OCuNi3 trigonal pyramids.