Materials Data on Yb(SbS2)2 by Materials Project

Abstract

Yb(SbS2)2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Yb2+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Yb–S bond distances ranging from 2.89–2.99 Å. There are two inequivalent Sb3+ sites. In the first Sb3+ site, Sb3+ is bonded to six S2- atoms to form distorted edge-sharing SbS6 octahedra. There are a spread of Sb–S bond distances ranging from 2.52–3.25 Å. In the second Sb3+ site, Sb3+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Sb–S bond distances ranging from 2.64–3.09 Å. There are four inequivalent S2- sites. In the first S2- site, S2- is bonded in a 6-coordinate geometry to two equivalent Yb2+ and four Sb3+ atoms. In the second S2- site, S2- is bonded in a 5-coordinate geometry to two equivalent Yb2+ and three Sb3+ atoms. In the third S2- site, S2- is bonded to two equivalent Yb2+ and three equivalent Sb3+ atoms to form distorted edge-sharing SYb2Sb3 square pyramids. In the fourth S2- site, S2- is bonded in a 3-coordinate geometry to one Yb2+ and three Sb3+ atoms.