Hf5Ga3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 6-coordinate geometry to six equivalent Ga(1) atoms. In the second Hf site, Hf(2) is bonded in a 5-coordinate geometry to five equivalent Ga(1) atoms. Ga(1) is bonded in a 9-coordinate geometry to four equivalent Hf(1) and five equivalent Hf(2) atoms.
Hf5Ga3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded in a 6-coordinate geometry to six equivalent Ga(1) atoms. All Hf(1)-Ga(1) bond lengths are 2.83 Å. In the second Hf site, Hf(2) is bonded in a 5-coordinate geometry to five equivalent Ga(1) atoms. There are a spread of Hf(2)-Ga(1) bond distances ranging from 2.73-3.07 Å. Ga(1) is bonded in a 9-coordinate geometry to four equivalent Hf(1) and five equivalent Hf(2) atoms.