K4Au6S5 crystallizes in the hexagonal P-62c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to four equivalent Au(1), two equivalent S(2), and three equivalent S(1) atoms. In the second K site, K(2) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. Au(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one S(1), and one S(2) atom. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to two equivalent K(2), three equivalent K(1), and two equivalent Au(1) atoms. In the second S site, S(2) is bonded to three equivalent K(1) and three equivalent Au(1) atoms to form face-sharing SK3Au3 octahedra.
K4Au6S5 crystallizes in the hexagonal P-62c space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 8-coordinate geometry to four equivalent Au(1), two equivalent S(2), and three equivalent S(1) atoms. There are two shorter (3.44 Å) and two longer (3.51 Å) K(1)-Au(1) bond lengths. Both K(1)-S(2) bond lengths are 3.20 Å. There are a spread of K(1)-S(1) bond distances ranging from 3.19-3.71 Å. In the second K site, K(2) is bonded in a 6-coordinate geometry to six equivalent S(1) atoms. All K(2)-S(1) bond lengths are 3.43 Å. Au(1) is bonded in a 4-coordinate geometry to two equivalent K(1), one S(1), and one S(2) atom. The Au(1)-S(1) bond length is 2.31 Å. The Au(1)-S(2) bond length is 2.34 Å. There are two inequivalent S sites. In the first S site, S(1) is bonded in a 7-coordinate geometry to two equivalent K(2), three equivalent K(1), and two equivalent Au(1) atoms. In the second S site, S(2) is bonded to three equivalent K(1) and three equivalent Au(1) atoms to form face-sharing SK3Au3 octahedra.