Materials Data on NbCu3Te4 by Materials Project
Cu3NbTe4 is Sulvanite structured and crystallizes in the cubic P-43m space group. The structure is three-dimensional. Nb5+ is bonded to four equivalent Te2- atoms to form NbTe4 tetrahedra that share edges with six equivalent CuTe4 tetrahedra. All Nb–Te bond lengths are 2.67 Å. Cu1+ is bonded to four equivalent Te2- atoms to form CuTe4 tetrahedra that share corners with eight equivalent CuTe4 tetrahedra and edges with two equivalent NbTe4 tetrahedra. All Cu–Te bond lengths are 2.62 Å. Te2- is bonded to one Nb5+ and three equivalent Cu1+ atoms to form a mixture of distorted edge and corner-sharing TeNbCu3 tetrahedra.
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