MgAl2 is Cuprite structured and crystallizes in the tetragonal P4_2/mnm space group. Mg(1) is bonded to six equivalent Al(1) atoms to form a mixture of distorted edge and corner-sharing MgAl6 octahedra. The corner-sharing octahedral tilt angles are 63°. Al(1) is bonded in a 4-coordinate geometry to three equivalent Mg(1) and one Al(1) atom.
MgAl2 is Cuprite structured and crystallizes in the tetragonal P4_2/mnm space group. Mg(1) is bonded to six equivalent Al(1) atoms to form a mixture of distorted edge and corner-sharing MgAl6 octahedra. The corner-sharing octahedral tilt angles are 63°. There are two shorter (2.64 Å) and four longer (2.85 Å) Mg(1)-Al(1) bond lengths. Al(1) is bonded in a 4-coordinate geometry to three equivalent Mg(1) and one Al(1) atom. The Al(1)-Al(1) bond length is 2.58 Å.