Ta5SnGa2 crystallizes in the orthorhombic Fmmm space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 6-coordinate geometry to one Ga(2), two equivalent Ga(1), and three equivalent Sn(1) atoms. In the second Ta site, Ta(2) is bonded in a 6-coordinate geometry to two equivalent Ga(1), three equivalent Ga(2), and one Sn(1) atom. In the third Ta site, Ta(3) is bonded in a 6-coordinate geometry to two equivalent Ta(3), two equivalent Ga(2), and two equivalent Sn(1) atoms. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to four equivalent Ta(1), four equivalent Ta(2), and two equivalent Ga(1) atoms. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to two equivalent Ta(1), two equivalent Ta(3), and six equivalent Ta(2) atoms. Sn(1) is bonded in a 10-coordinate geometry to two equivalent Ta(2), two equivalent Ta(3), and six equivalent Ta(1) atoms.
Ta5SnGa2 crystallizes in the orthorhombic Fmmm space group. There are three inequivalent Ta sites. In the first Ta site, Ta(1) is bonded in a 6-coordinate geometry to one Ga(2), two equivalent Ga(1), and three equivalent Sn(1) atoms. The Ta(1)-Ga(2) bond length is 2.68 Å. Both Ta(1)-Ga(1) bond lengths are 2.74 Å. There is one shorter (2.85 Å) and two longer (3.03 Å) Ta(1)-Sn(1) bond lengths. In the second Ta site, Ta(2) is bonded in a 6-coordinate geometry to two equivalent Ga(1), three equivalent Ga(2), and one Sn(1) atom. Both Ta(2)-Ga(1) bond lengths are 2.76 Å. There is one shorter (2.71 Å) and two longer (3.01 Å) Ta(2)-Ga(2) bond lengths. The Ta(2)-Sn(1) bond length is 2.86 Å. In the third Ta site, Ta(3) is bonded in a 6-coordinate geometry to two equivalent Ta(3), two equivalent Ga(2), and two equivalent Sn(1) atoms. There is one shorter (2.53 Å) and one longer (2.64 Å) Ta(3)-Ta(3) bond length. Both Ta(3)-Ga(2) bond lengths are 2.76 Å. Both Ta(3)-Sn(1) bond lengths are 2.86 Å. There are two inequivalent Ga sites. In the first Ga site, Ga(1) is bonded in a 10-coordinate geometry to four equivalent Ta(1), four equivalent Ta(2), and two equivalent Ga(1) atoms. Both Ga(1)-Ga(1) bond lengths are 2.59 Å. In the second Ga site, Ga(2) is bonded in a 10-coordinate geometry to two equivalent Ta(1), two equivalent Ta(3), and six equivalent Ta(2) atoms. Sn(1) is bonded in a 10-coordinate geometry to two equivalent Ta(2), two equivalent Ta(3), and six equivalent Ta(1) atoms.