Materials Data on Tb(CuTe)3 by Materials Project

Abstract

Tb(CuTe)3 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Tb3+ is bonded to six equivalent Te2- atoms to form TbTe6 octahedra that share corners with twelve equivalent CuTe4 tetrahedra, edges with three equivalent TbTe6 octahedra, and edges with six equivalent CuTe4 tetrahedra. All Tb–Te bond lengths are 3.08 Å. Cu1+ is bonded to four equivalent Te2- atoms to form CuTe4 tetrahedra that share corners with four equivalent TbTe6 octahedra, corners with six equivalent CuTe4 tetrahedra, edges with two equivalent TbTe6 octahedra, and edges with three equivalent CuTe4 tetrahedra. The corner-sharing octahedra tilt angles range from 17–59°. There are a spread of Cu–Te bond distances ranging from 2.58–2.68 Å. Te2- is bonded in a 6-coordinate geometry to two equivalent Tb3+ and four equivalent Cu1+ atoms.