Ta3Re is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to four equivalent Ta(2) and four equivalent Re(1) atoms to form a mixture of distorted face, corner, and edge-sharing TaTa4Re4 tetrahedra. In the second Ta site, Ta(2) is bonded in a 14-coordinate geometry to eight equivalent Ta(1) and six equivalent Re(1) atoms. Re(1) is bonded in a distorted body-centered cubic geometry to six equivalent Ta(2) and eight equivalent Ta(1) atoms.
Ta3Re is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Ta sites. In the first Ta site, Ta(1) is bonded to four equivalent Ta(2) and four equivalent Re(1) atoms to form a mixture of distorted face, corner, and edge-sharing TaTa4Re4 tetrahedra. All Ta(1)-Ta(2) bond lengths are 2.80 Å. All Ta(1)-Re(1) bond lengths are 2.80 Å. In the second Ta site, Ta(2) is bonded in a 14-coordinate geometry to eight equivalent Ta(1) and six equivalent Re(1) atoms. All Ta(2)-Re(1) bond lengths are 3.24 Å. Re(1) is bonded in a distorted body-centered cubic geometry to six equivalent Ta(2) and eight equivalent Ta(1) atoms.