Y5Ga3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 6-coordinate geometry to six equivalent Ga(1) atoms. In the second Y site, Y(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 Y(1) and five equivalent Y(2) atoms.
Y5Ga3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Y sites. In the first Y site, Y(1) is bonded in a 6-coordinate geometry to six equivalent Ga(1) atoms. All Y(1)-Ga(1) bond lengths are 3.13 Å. In the second Y site, Y(2) is bonded in a 5-coordinate geometry to five equivalent Ga(1) atoms. There are a spread of Y(2)-Ga(1) bond distances ranging from 2.98-3.50 Å. Ga(1) is bonded in a 9-coordinate geometry to four equivalent Y(1) and five equivalent Y(2) atoms.