MgH2 crystallizes in the cubic Pa-3 space group. Mg(1) is bonded to six equivalent H(1) atoms to form corner-sharing MgH6 octahedra. The corner-sharing octahedral tilt angles are 60°. H(1) is bonded in a trigonal planar geometry to three equivalent Mg(1) atoms.
MgH2 crystallizes in the cubic Pa-3 space group. Mg(1) is bonded to six equivalent H(1) atoms to form corner-sharing MgH6 octahedra. The corner-sharing octahedral tilt angles are 60°. All Mg(1)-H(1) bond lengths are 1.96 Å. H(1) is bonded in a trigonal planar geometry to three equivalent Mg(1) atoms.