MgGa5 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded in a 10-coordinate geometry to two equivalent Ga(3), two equivalent Ga(4), two equivalent Ga(5), and four equivalent Ga(2) atoms. There are five inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), two equivalent Ga(4), and four equivalent Ga(5) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to four equivalent Mg(1), two equivalent Ga(1), two equivalent Ga(3), and two equivalent Ga(5) atoms. In the third Ga site, Ga(3) is bonded in a 2-coordinate geometry to two equivalent Mg(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded in a 2-coordinate geometry to two equivalent Mg(1) and two equivalent Ga(1) atoms. In the fifth Ga site, Ga(5) is bonded in a 2-coordinate geometry to two equivalent Mg(1), two equivalent Ga(2), and four equivalent Ga(1) atoms.
MgGa5 crystallizes in the orthorhombic Amm2 space group. Mg(1) is bonded in a 10-coordinate geometry to two equivalent Ga(3), two equivalent Ga(4), two equivalent Ga(5), and four equivalent Ga(2) atoms. Both Mg(1)-Ga(3) bond lengths are 2.98 Å. Both Mg(1)-Ga(4) bond lengths are 2.91 Å. Both Mg(1)-Ga(5) bond lengths are 2.89 Å. All Mg(1)-Ga(2) bond lengths are 3.07 Å. There are five inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ga(2), two equivalent Ga(3), two equivalent Ga(4), and four equivalent Ga(5) atoms. Both Ga(1)-Ga(2) bond lengths are 2.84 Å. Both Ga(1)-Ga(3) bond lengths are 2.84 Å. Both Ga(1)-Ga(4) bond lengths are 2.94 Å. All Ga(1)-Ga(5) bond lengths are 3.06 Å. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to four equivalent Mg(1), two equivalent Ga(1), two equivalent Ga(3), and two equivalent Ga(5) atoms. Both Ga(2)-Ga(3) bond lengths are 2.90 Å. Both Ga(2)-Ga(5) bond lengths are 2.98 Å. In the third Ga site, Ga(3) is bonded in a 2-coordinate geometry to two equivalent Mg(1), two equivalent Ga(1), and two equivalent Ga(2) atoms. In the fourth Ga site, Ga(4) is bonded in a 2-coordinate geometry to two equivalent Mg(1) and two equivalent Ga(1) atoms. In the fifth Ga site, Ga(5) is bonded in a 2-coordinate geometry to two equivalent Mg(1), two equivalent Ga(2), and four equivalent Ga(1) atoms.