K6CdTe4 crystallizes in the hexagonal P6_3mc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one Cd(1), one Te(2), and four equivalent Te(1) atoms. In the second K site, K(2) is bonded in a 4-coordinate geometry to one Te(2) and three equivalent Te(1) atoms. Cd(1) is bonded in a distorted tetrahedral geometry to three equivalent K(1), one Te(2), and three equivalent Te(1) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 8-coordinate geometry to three equivalent K(2), four equivalent K(1), and one Cd(1) atom. In the second Te site, Te(2) is bonded in a 7-coordinate geometry to three equivalent K(1), three equivalent K(2), and one Cd(1) atom.
K6CdTe4 crystallizes in the hexagonal P6_3mc space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a 6-coordinate geometry to one Cd(1), one Te(2), and four equivalent Te(1) atoms. The K(1)-Cd(1) bond length is 3.81 Å. The K(1)-Te(2) bond length is 3.58 Å. There are two shorter (3.58 Å) and two longer (3.81 Å) K(1)-Te(1) bond lengths. In the second K site, K(2) is bonded in a 4-coordinate geometry to one Te(2) and three equivalent Te(1) atoms. The K(2)-Te(2) bond length is 3.56 Å. There are two shorter (3.43 Å) and one longer (3.49 Å) K(2)-Te(1) bond length. Cd(1) is bonded in a distorted tetrahedral geometry to three equivalent K(1), one Te(2), and three equivalent Te(1) atoms. The Cd(1)-Te(2) bond length is 2.89 Å. All Cd(1)-Te(1) bond lengths are 2.88 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 8-coordinate geometry to three equivalent K(2), four equivalent K(1), and one Cd(1) atom. In the second Te site, Te(2) is bonded in a 7-coordinate geometry to three equivalent K(1), three equivalent K(2), and one Cd(1) atom.