Materials Data on Ce5AgS8 by Materials Project

Abstract

Ce5AgS8 crystallizes in the tetragonal I-4 space group. The structure is three-dimensional. there are two inequivalent Ce3+ sites. In the first Ce3+ site, Ce3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are a spread of Ce–S bond distances ranging from 2.84–3.13 Å. In the second Ce3+ site, Ce3+ is bonded in a 8-coordinate geometry to eight S2- atoms. There are four shorter (2.85 Å) and four longer (3.02 Å) Ce–S bond lengths. Ag1+ is bonded in a distorted hexagonal bipyramidal geometry to eight S2- atoms. There are four shorter (2.85 Å) and four longer (3.19 Å) Ag–S bond lengths. There are two inequivalent S2- sites. In the first S2- site, S2- is bonded in a 6-coordinate geometry to five Ce3+ and one Ag1+ atom. In the second S2- site, S2- is bonded in a 6-coordinate geometry to five Ce3+ and one Ag1+ atom.