TaCu3Te4 is Sulvanite structured and crystallizes in the cubic P-43m space group. Ta(1) is bonded in a 10-coordinate geometry to six equivalent Cu(1) and four equivalent Te(1) atoms. Cu(1) is bonded in a 6-coordinate geometry to two equivalent Ta(1) and four equivalent Te(1) atoms. Te(1) is bonded to one Ta(1) and three equivalent Cu(1) atoms to form a mixture of corner and edge-sharing TeTaCu3 tetrahedra.
TaCu3Te4 is Sulvanite structured and crystallizes in the cubic P-43m space group. Ta(1) is bonded in a 10-coordinate geometry to six equivalent Cu(1) and four equivalent Te(1) atoms. All Ta(1)-Cu(1) bond lengths are 2.98 Å. All Ta(1)-Te(1) bond lengths are 2.65 Å. Cu(1) is bonded in a 6-coordinate geometry to two equivalent Ta(1) and four equivalent Te(1) atoms. All Cu(1)-Te(1) bond lengths are 2.60 Å. Te(1) is bonded to one Ta(1) and three equivalent Cu(1) atoms to form a mixture of corner and edge-sharing TeTaCu3 tetrahedra.