Co5Te6 crystallizes in the trigonal R-3 space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to one Co(3) and six equivalent Te(1) atoms to form distorted edge-sharing CoCoTe6 octahedra. In the second Co site, Co(2) is bonded in a 8-coordinate geometry to two equivalent Co(3) and six equivalent Te(1) atoms. In the third Co site, Co(3) is bonded in a 8-coordinate geometry to one Co(1), one Co(2), and six equivalent Te(1) atoms. Te(1) is bonded in a 5-coordinate geometry to one Co(2), two equivalent Co(1), and two equivalent Co(3) atoms.
Co5Te6 crystallizes in the trigonal R-3 space group. There are three inequivalent Co sites. In the first Co site, Co(1) is bonded to one Co(3) and six equivalent Te(1) atoms to form distorted edge-sharing CoCoTe6 octahedra. The Co(1)-Co(3) bond length is 2.75 Å. There are three shorter (2.59 Å) and three longer (2.62 Å) Co(1)-Te(1) bond lengths. In the second Co site, Co(2) is bonded in a 8-coordinate geometry to two equivalent Co(3) and six equivalent Te(1) atoms. Both Co(2)-Co(3) bond lengths are 2.67 Å. All Co(2)-Te(1) bond lengths are 2.65 Å. In the third Co site, Co(3) is bonded in a 8-coordinate geometry to one Co(1), one Co(2), and six equivalent Te(1) atoms. There are three shorter (2.63 Å) and three longer (2.68 Å) Co(3)-Te(1) bond lengths. Te(1) is bonded in a 5-coordinate geometry to one Co(2), two equivalent Co(1), and two equivalent Co(3) atoms.