NaCu3Te2 crystallizes in the trigonal R3m space group. Na(1) is bonded in a 8-coordinate geometry to one Cu(1), one Cu(2), three equivalent Te(1), and three equivalent Te(2) atoms. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 11-coordinate geometry to one Na(1), three equivalent Cu(2), three equivalent Cu(3), one Te(1), and three equivalent Te(2) atoms. In the second Cu site, Cu(2) is bonded in a 5-coordinate geometry to one Na(1), three equivalent Cu(1), one Te(2), and three equivalent Te(1) atoms. In the third Cu site, Cu(3) is bonded in a 6-coordinate geometry to three equivalent Cu(1) and three equivalent Te(2) atoms. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 7-coordinate geometry to three equivalent Na(1), one Cu(1), and three equivalent Cu(2) atoms. In the second Te site, Te(2) is bonded in a 10-coordinate geometry to three equivalent Na(1), one Cu(2), three equivalent Cu(1), and three equivalent Cu(3) atoms.
NaCu3Te2 crystallizes in the trigonal R3m space group. Na(1) is bonded in a 8-coordinate geometry to one Cu(1), one Cu(2), three equivalent Te(1), and three equivalent Te(2) atoms. The Na(1)-Cu(1) bond length is 3.50 Å. The Na(1)-Cu(2) bond length is 3.06 Å. All Na(1)-Te(1) bond lengths are 3.14 Å. All Na(1)-Te(2) bond lengths are 3.27 Å. There are three inequivalent Cu sites. In the first Cu site, Cu(1) is bonded in a 11-coordinate geometry to one Na(1), three equivalent Cu(2), three equivalent Cu(3), one Te(1), and three equivalent Te(2) atoms. All Cu(1)-Cu(2) bond lengths are 2.85 Å. All Cu(1)-Cu(3) bond lengths are 2.51 Å. The Cu(1)-Te(1) bond length is 2.52 Å. All Cu(1)-Te(2) bond lengths are 2.84 Å. In the second Cu site, Cu(2) is bonded in a 5-coordinate geometry to one Na(1), three equivalent Cu(1), one Te(2), and three equivalent Te(1) atoms. The Cu(2)-Te(2) bond length is 2.77 Å. All Cu(2)-Te(1) bond lengths are 2.73 Å. In the third Cu site, Cu(3) is bonded in a 6-coordinate geometry to three equivalent Cu(1) and three equivalent Te(2) atoms. All Cu(3)-Te(2) bond lengths are 2.69 Å. There are two inequivalent Te sites. In the first Te site, Te(1) is bonded in a 7-coordinate geometry to three equivalent Na(1), one Cu(1), and three equivalent Cu(2) atoms. In the second Te site, Te(2) is bonded in a 10-coordinate geometry to three equivalent Na(1), one Cu(2), three equivalent Cu(1), and three equivalent Cu(3) atoms.