K3Au3Sb2 crystallizes in the trigonal R-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to six equivalent Au(1) and six equivalent Sb(1) atoms to form a mixture of distorted edge and corner-sharing KSb6Au6 cuboctahedra. In the second K site, K(2) is bonded in a 10-coordinate geometry to six equivalent Au(1) and four equivalent Sb(1) atoms. Au(1) is bonded in a 2-coordinate geometry to two equivalent K(1), four equivalent K(2), and two equivalent Sb(1) atoms. Sb(1) is bonded in a 10-coordinate geometry to three equivalent K(1), four equivalent K(2), and three equivalent Au(1) atoms.
K3Au3Sb2 crystallizes in the trigonal R-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded to six equivalent Au(1) and six equivalent Sb(1) atoms to form a mixture of distorted edge and corner-sharing KSb6Au6 cuboctahedra. All K(1)-Au(1) bond lengths are 4.03 Å. All K(1)-Sb(1) bond lengths are 3.96 Å. In the second K site, K(2) is bonded in a 10-coordinate geometry to six equivalent Au(1) and four equivalent Sb(1) atoms. All K(2)-Au(1) bond lengths are 3.58 Å. There is one shorter (3.50 Å) and three longer (3.62 Å) K(2)-Sb(1) bond lengths. Au(1) is bonded in a 2-coordinate geometry to two equivalent K(1), four equivalent K(2), and two equivalent Sb(1) atoms. Both Au(1)-Sb(1) bond lengths are 2.68 Å. Sb(1) is bonded in a 10-coordinate geometry to three equivalent K(1), four equivalent K(2), and three equivalent Au(1) atoms.