Mg13Al14 crystallizes in the cubic Im-3m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 14-coordinate geometry to six equivalent Al(2) and eight equivalent Al(1) atoms. In the second Mg site, Mg(2) is bonded in a 4-coordinate geometry to two equivalent Al(1) and two equivalent Al(2) atoms. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted body-centered cubic geometry to one Mg(1), three equivalent Mg(2), one Al(1), and three equivalent Al(2) atoms. In the second Al site, Al(2) is bonded in a distorted q6 geometry to one Mg(1), four equivalent Mg(2), and four equivalent Al(1) atoms.
Mg13Al14 crystallizes in the cubic Im-3m space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 14-coordinate geometry to six equivalent Al(2) and eight equivalent Al(1) atoms. All Mg(1)-Al(2) bond lengths are 3.06 Å. All Mg(1)-Al(1) bond lengths are 3.02 Å. In the second Mg site, Mg(2) is bonded in a 4-coordinate geometry to two equivalent Al(1) and two equivalent Al(2) atoms. Both Mg(2)-Al(1) bond lengths are 3.04 Å. Both Mg(2)-Al(2) bond lengths are 3.04 Å. There are two inequivalent Al sites. In the first Al site, Al(1) is bonded in a distorted body-centered cubic geometry to one Mg(1), three equivalent Mg(2), one Al(1), and three equivalent Al(2) atoms. The Al(1)-Al(1) bond length is 2.80 Å. All Al(1)-Al(2) bond lengths are 2.79 Å. In the second Al site, Al(2) is bonded in a distorted q6 geometry to one Mg(1), four equivalent Mg(2), and four equivalent Al(1) atoms.