MgNiH crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded in a square co-planar geometry to four equivalent H(1) atoms. Ni(1) is bonded in a linear geometry to two equivalent H(1) atoms. H(1) is bonded to four equivalent Mg(1) and two equivalent Ni(1) atoms to form a mixture of corner and edge-sharing HMg4Ni2 octahedra. The corner-sharing octahedra are not tilted.
MgNiH crystallizes in the tetragonal P4/mmm space group. Mg(1) is bonded in a square co-planar geometry to four equivalent H(1) atoms. All Mg(1)-H(1) bond lengths are 2.18 Å. Ni(1) is bonded in a linear geometry to two equivalent H(1) atoms. Both Ni(1)-H(1) bond lengths are 1.63 Å. H(1) is bonded to four equivalent Mg(1) and two equivalent Ni(1) atoms to form a mixture of corner and edge-sharing HMg4Ni2 octahedra. The corner-sharing octahedra are not tilted.