Cu3Te2 crystallizes in the tetragonal P4mm space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to two equivalent Cu(2), four equivalent Cu(1), two equivalent Te(1), and two equivalent Te(2) atoms. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to four equivalent Cu(1), one Te(1), and four equivalent Te(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 5-coordinate geometry to one Cu(2) and four equivalent Cu(1) atoms. In the second Te site, Te(2) is bonded to four equivalent Cu(1) and four equivalent Cu(2) atoms to form a mixture of distorted face and corner-sharing TeCu8 hexagonal bipyramids.
Cu3Te2 crystallizes in the tetragonal P4mm space group. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 10-coordinate geometry to two equivalent Cu(2), four equivalent Cu(1), two equivalent Te(1), and two equivalent Te(2) atoms. Both Cu(1)-Cu(2) bond lengths are 2.62 Å. All Cu(1)-Cu(1) bond lengths are 2.86 Å. Both Cu(1)-Te(1) bond lengths are 2.60 Å. Both Cu(1)-Te(2) bond lengths are 2.69 Å. In the second Cu site, Cu(2) is bonded in a 9-coordinate geometry to four equivalent Cu(1), one Te(1), and four equivalent Te(2) atoms. The Cu(2)-Te(1) bond length is 2.68 Å. All Cu(2)-Te(2) bond lengths are 2.86 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 5-coordinate geometry to one Cu(2) and four equivalent Cu(1) atoms. In the second Te site, Te(2) is bonded to four equivalent Cu(1) and four equivalent Cu(2) atoms to form a mixture of distorted face and corner-sharing TeCu8 hexagonal bipyramids.