Materials Data on RbYbZnTe3 by Materials Project

Abstract

RbYbZnTe3 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Rb1+ is bonded in a 8-coordinate geometry to eight Te2- atoms. There are a spread of Rb–Te bond distances ranging from 3.76–4.21 Å. Yb3+ is bonded to six Te2- atoms to form YbTe6 octahedra that share corners with two equivalent YbTe6 octahedra, edges with two equivalent YbTe6 octahedra, and edges with four equivalent ZnTe4 tetrahedra. The corner-sharing octahedral tilt angles are 40°. There are two shorter (3.12 Å) and four longer (3.14 Å) Yb–Te bond lengths. Zn2+ is bonded to four Te2- atoms to form ZnTe4 tetrahedra that share corners with two equivalent ZnTe4 tetrahedra and edges with four equivalent YbTe6 octahedra. There are two shorter (2.67 Å) and two longer (2.73 Å) Zn–Te bond lengths. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 6-coordinate geometry to three equivalent Rb1+, two equivalent Yb3+, and one Zn2+ atom. In the second Te2- site, Te2- is bonded in a 6-coordinate geometry to two equivalent Rb1+, two equivalent Yb3+, and two equivalent Zn2+ atoms.