Al3Mg2 crystallizes in the tetragonal I4_1/amd space group. Mg(1) is bonded in a 11-coordinate geometry to three equivalent Mg(1), three equivalent Al(2), and five equivalent Al(1) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 10-coordinate geometry to five equivalent Mg(1), two equivalent Al(2), and three equivalent Al(1) atoms. In the second Al site, Al(2) is bonded in a 10-coordinate geometry to six equivalent Mg(1) and four equivalent Al(1) atoms.
Al3Mg2 crystallizes in the tetragonal I4_1/amd space group. Mg(1) is bonded in a 11-coordinate geometry to three equivalent Mg(1), three equivalent Al(2), and five equivalent Al(1) atoms. There is one shorter (2.89 Å) and two longer (3.02 Å) Mg(1)-Mg(1) bond lengths. There are two shorter (2.87 Å) and one longer (3.24 Å) Mg(1)-Al(2) bond length. There are a spread of Mg(1)-Al(1) bond distances ranging from 2.95-3.23 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a 10-coordinate geometry to five equivalent Mg(1), two equivalent Al(2), and three equivalent Al(1) atoms. Both Al(1)-Al(2) bond lengths are 2.82 Å. There is one shorter (2.74 Å) and two longer (2.82 Å) Al(1)-Al(1) bond lengths. In the second Al site, Al(2) is bonded in a 10-coordinate geometry to six equivalent Mg(1) and four equivalent Al(1) atoms.