Ta5SnGa2 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 7-coordinate geometry to one Ta(1), four equivalent Ga(1), and two equivalent Sn(1) atoms. In the second Ta site, Ta(2) is bonded in a 6-coordinate geometry to two equivalent Ta(2) and four equivalent Ga(1) atoms. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ta(2) and eight equivalent Ta(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to eight equivalent Ta(1) and two equivalent Sn(1) atoms.
Ta5SnGa2 crystallizes in the tetragonal I4/mcm space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 7-coordinate geometry to one Ta(1), four equivalent Ga(1), and two equivalent Sn(1) atoms. The Ta(1)-Ta(1) bond length is 2.77 Å. There are a spread of Ta(1)-Ga(1) bond distances ranging from 2.73-3.01 Å. Both Ta(1)-Sn(1) bond lengths are 2.89 Å. In the second Ta site, Ta(2) is bonded in a 6-coordinate geometry to two equivalent Ta(2) and four equivalent Ga(1) atoms. Both Ta(2)-Ta(2) bond lengths are 2.67 Å. All Ta(2)-Ga(1) bond lengths are 2.79 Å. Ga(1) is bonded in a 10-coordinate geometry to two equivalent Ta(2) and eight equivalent Ta(1) atoms. Sn(1) is bonded in a 10-coordinate geometry to eight equivalent Ta(1) and two equivalent Sn(1) atoms. Both Sn(1)-Sn(1) bond lengths are 2.67 Å.