Materials Data on NaCu5S3 by Materials Project

Abstract

NaCu5S3 crystallizes in the hexagonal P6_322 space group. The structure is three-dimensional. Na1+ is bonded in a 9-coordinate geometry to three equivalent Cu1+ and six equivalent S2- atoms. All Na–Cu bond lengths are 2.72 Å. All Na–S bond lengths are 3.06 Å. There are two inequivalent Cu1+ sites. In the first Cu1+ site, Cu1+ is bonded in a 2-coordinate geometry to one Na1+ and two equivalent S2- atoms. Both Cu–S bond lengths are 2.23 Å. In the second Cu1+ site, Cu1+ is bonded in a trigonal planar geometry to three equivalent S2- atoms. All Cu–S bond lengths are 2.39 Å. S2- is bonded in a 6-coordinate geometry to two equivalent Na1+ and four Cu1+ atoms.