Mo2Cu3Ga8 crystallizes in the cubic I-43d space group. Mo(1) is bonded in a 11-coordinate geometry to three equivalent Cu(1), two equivalent Ga(2), and six equivalent Ga(1) atoms. Cu(1) is bonded in a distorted q6 geometry to two equivalent Mo(1), two equivalent Ga(2), and six equivalent Ga(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 5-coordinate geometry to two equivalent Mo(1), three equivalent Cu(1), and one Ga(2) atom. In the second Ga site, Ga(2) is bonded in a 8-coordinate geometry to two equivalent Mo(1), three equivalent Cu(1), and three equivalent Ga(1) atoms.
Mo2Cu3Ga8 crystallizes in the cubic I-43d space group. Mo(1) is bonded in a 11-coordinate geometry to three equivalent Cu(1), two equivalent Ga(2), and six equivalent Ga(1) atoms. All Mo(1)-Cu(1) bond lengths are 2.78 Å. There is one shorter (2.58 Å) and one longer (2.63 Å) Mo(1)-Ga(2) bond length. There are three shorter (2.62 Å) and three longer (2.63 Å) Mo(1)-Ga(1) bond lengths. Cu(1) is bonded in a distorted q6 geometry to two equivalent Mo(1), two equivalent Ga(2), and six equivalent Ga(1) atoms. Both Cu(1)-Ga(2) bond lengths are 2.65 Å. There are a spread of Cu(1)-Ga(1) bond distances ranging from 2.58-2.69 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 5-coordinate geometry to two equivalent Mo(1), three equivalent Cu(1), and one Ga(2) atom. The Ga(1)-Ga(2) bond length is 2.74 Å. In the second Ga site, Ga(2) is bonded in a 8-coordinate geometry to two equivalent Mo(1), three equivalent Cu(1), and three equivalent Ga(1) atoms.