K3Ta is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to four equivalent K(2) and four equivalent Ta(1) atoms to form a mixture of distorted edge, face, and corner-sharing KK4Ta4 tetrahedra. In the second K site, K(2) is bonded in a distorted body-centered cubic geometry to eight equivalent K(1) atoms. Ta(1) is bonded in a body-centered cubic geometry to eight equivalent K(1) atoms.
K3Ta is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to four equivalent K(2) and four equivalent Ta(1) atoms to form a mixture of distorted edge, face, and corner-sharing KK4Ta4 tetrahedra. All K(1)-K(2) bond lengths are 3.90 Å. All K(1)-Ta(1) bond lengths are 3.90 Å. In the second K site, K(2) is bonded in a distorted body-centered cubic geometry to eight equivalent K(1) atoms. Ta(1) is bonded in a body-centered cubic geometry to eight equivalent K(1) atoms.