MgO2 is Pyrite-like structured and crystallizes in the cubic Pa-3 space group. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with twelve equivalent Mg(1)O6 octahedra and corners with six equivalent O(1)Mg3O tetrahedra. The corner-sharing octahedral tilt angles are 69°. O(1) is bonded to three equivalent Mg(1) and one O(1) atom to form OMg3O tetrahedra that share corners with three equivalent Mg(1)O6 octahedra and corners with fifteen equivalent O(1)Mg3O tetrahedra. The corner-sharing octahedral tilt angles are 72°.
MgO2 is Pyrite-like structured and crystallizes in the cubic Pa-3 space group. Mg(1) is bonded to six equivalent O(1) atoms to form MgO6 octahedra that share corners with twelve equivalent Mg(1)O6 octahedra and corners with six equivalent O(1)Mg3O tetrahedra. The corner-sharing octahedral tilt angles are 69°. All Mg(1)-O(1) bond lengths are 2.07 Å. O(1) is bonded to three equivalent Mg(1) and one O(1) atom to form OMg3O tetrahedra that share corners with three equivalent Mg(1)O6 octahedra and corners with fifteen equivalent O(1)Mg3O tetrahedra. The corner-sharing octahedral tilt angles are 72°. The O(1)-O(1) bond length is 1.50 Å.