MgGa2 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 8-coordinate geometry to three equivalent Ga(1) and five equivalent Ga(2) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1) atoms. In the second Ga site, Ga(2) is bonded in a 5-coordinate geometry to five equivalent Mg(1) atoms.
MgGa2 crystallizes in the monoclinic C2/m space group. Mg(1) is bonded in a 8-coordinate geometry to three equivalent Ga(1) and five equivalent Ga(2) atoms. There are two shorter (2.95 Å) and one longer (2.98 Å) Mg(1)-Ga(1) bond length. There are three shorter (2.95 Å) and two longer (3.01 Å) Mg(1)-Ga(2) bond lengths. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 3-coordinate geometry to three equivalent Mg(1) atoms. In the second Ga site, Ga(2) is bonded in a 5-coordinate geometry to five equivalent Mg(1) atoms.