Materials Data on Yb(CuTe)3 by Materials Project
Yb(CuTe)3 crystallizes in the trigonal R-3 space group. The structure is three-dimensional. Yb3+ is bonded to six equivalent Te2- atoms to form YbTe6 octahedra that share corners with twelve equivalent CuTe4 tetrahedra, edges with three equivalent YbTe6 octahedra, and edges with six equivalent CuTe4 tetrahedra. All Yb–Te bond lengths are 3.13 Å. Cu1+ is bonded to four equivalent Te2- atoms to form CuTe4 tetrahedra that share corners with four equivalent YbTe6 octahedra, corners with six equivalent CuTe4 tetrahedra, edges with two equivalent YbTe6 octahedra, and edges with three equivalent CuTe4 tetrahedra. The corner-sharing octahedra tilt angles range from 18–55°. There are a spread of Cu–Te bond distances ranging from 2.62–2.67 Å. Te2- is bonded in a 6-coordinate geometry to two equivalent Yb3+ and four equivalent Cu1+ atoms.