Hf5GaSn3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded to two equivalent Ga(1) and five equivalent Sn(1) atoms to form a mixture of distorted corner, face, and edge-sharing HfGa2Sn5 pentagonal bipyramids. In the second Hf site, Hf(2) is bonded in a 6-coordinate geometry to six equivalent Sn(1) atoms. Ga(1) is bonded to six equivalent Hf(1) atoms to form face-sharing GaHf6 octahedra. Sn(1) is bonded in a 9-coordinate geometry to four equivalent Hf(2) and five equivalent Hf(1) atoms.
Hf5GaSn3 crystallizes in the hexagonal P6_3/mcm space group. There are two inequivalent Hf sites. In the first Hf site, Hf(1) is bonded to two equivalent Ga(1) and five equivalent Sn(1) atoms to form a mixture of distorted corner, face, and edge-sharing HfGa2Sn5 pentagonal bipyramids. Both Hf(1)-Ga(1) bond lengths are 2.70 Å. There are a spread of Hf(1)-Sn(1) bond distances ranging from 2.96-3.09 Å. In the second Hf site, Hf(2) is bonded in a 6-coordinate geometry to six equivalent Sn(1) atoms. All Hf(2)-Sn(1) bond lengths are 3.02 Å. Ga(1) is bonded to six equivalent Hf(1) atoms to form face-sharing GaHf6 octahedra. Sn(1) is bonded in a 9-coordinate geometry to four equivalent Hf(2) and five equivalent Hf(1) atoms.