NaCu3Te2 crystallizes in the trigonal R-3m space group. Na(1) is bonded in a 8-coordinate geometry to two equivalent Cu(2) and six equivalent Te(1) atoms. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to six equivalent Cu(2) and six equivalent Te(1) atoms to form face-sharing CuCu6Te6 cuboctahedra. In the second Cu site, Cu(2) is bonded in a 8-coordinate geometry to one Na(1), three equivalent Cu(1), and four equivalent Te(1) atoms. Te(1) is bonded in a 7-coordinate geometry to three equivalent Na(1), three equivalent Cu(1), and four equivalent Cu(2) atoms.
NaCu3Te2 crystallizes in the trigonal R-3m space group. Na(1) is bonded in a 8-coordinate geometry to two equivalent Cu(2) and six equivalent Te(1) atoms. Both Na(1)-Cu(2) bond lengths are 3.17 Å. All Na(1)-Te(1) bond lengths are 3.21 Å. There are two inequivalent Cu sites. In the first Cu site, Cu(1) is bonded to six equivalent Cu(2) and six equivalent Te(1) atoms to form face-sharing CuCu6Te6 cuboctahedra. All Cu(1)-Cu(2) bond lengths are 2.57 Å. All Cu(1)-Te(1) bond lengths are 3.09 Å. In the second Cu site, Cu(2) is bonded in a 8-coordinate geometry to one Na(1), three equivalent Cu(1), and four equivalent Te(1) atoms. There is one shorter (2.67 Å) and three longer (2.68 Å) Cu(2)-Te(1) bond lengths. Te(1) is bonded in a 7-coordinate geometry to three equivalent Na(1), three equivalent Cu(1), and four equivalent Cu(2) atoms.