Ta5Sb4 is Titanium telluride structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1,2) is bonded in a 5-coordinate geometry to two equivalent Ta(3) and five equivalent Sb(1,2) atoms. In the second Ta site, Ta(3) is bonded to eight equivalent Ta(1,2) and four equivalent Sb(1,2) atoms to form face-sharing TaTa8Sb4 cuboctahedra. Sb(1,2) is bonded in a 6-coordinate geometry to one Ta(3) and five equivalent Ta(1,2) atoms.
Ta5Sb4 is Titanium telluride structured and crystallizes in the triclinic P-1 space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1,2) is bonded in a 5-coordinate geometry to two equivalent Ta(3) and five equivalent Sb(1,2) atoms. Both Ta(1,2)-Ta(3) bond lengths are 2.94 Å. There are a spread of Ta(1,2)-Sb(1,2) bond distances ranging from 2.79-2.84 Å. In the second Ta site, Ta(3) is bonded to eight equivalent Ta(1,2) and four equivalent Sb(1,2) atoms to form face-sharing TaTa8Sb4 cuboctahedra. All Ta(3)-Sb(1,2) bond lengths are 3.09 Å. Sb(1,2) is bonded in a 6-coordinate geometry to one Ta(3) and five equivalent Ta(1,2) atoms.