K8SnSb4 crystallizes in the cubic Fd-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent Sn(1) and six equivalent Sb(1) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to four equivalent Sb(1) atoms. Sn(1) is bonded in a body-centered cubic geometry to four equivalent K(1) and four equivalent Sb(1) atoms. Sb(1) is bonded in a 10-coordinate geometry to three equivalent K(1), six equivalent K(2), and one Sn(1) atom.
K8SnSb4 crystallizes in the cubic Fd-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to two equivalent Sn(1) and six equivalent Sb(1) atoms. Both K(1)-Sn(1) bond lengths are 3.54 Å. All K(1)-Sb(1) bond lengths are 3.76 Å. In the second K site, K(2) is bonded in a 4-coordinate geometry to four equivalent Sb(1) atoms. There are two shorter (3.65 Å) and two longer (3.66 Å) K(2)-Sb(1) bond lengths. Sn(1) is bonded in a body-centered cubic geometry to four equivalent K(1) and four equivalent Sb(1) atoms. All Sn(1)-Sb(1) bond lengths are 2.92 Å. Sb(1) is bonded in a 10-coordinate geometry to three equivalent K(1), six equivalent K(2), and one Sn(1) atom.