Materials Data on Ba(Cu2P)4 by Materials Project

Abstract

Ba(Cu2P)4 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. Ba2+ is bonded in a body-centered cubic geometry to eight equivalent P3- atoms. All Ba–P bond lengths are 3.42 Å. There are two inequivalent Cu+1.25+ sites. In the first Cu+1.25+ site, Cu+1.25+ is bonded in a 4-coordinate geometry to four equivalent P3- atoms. There are a spread of Cu–P bond distances ranging from 2.27–2.60 Å. In the second Cu+1.25+ site, Cu+1.25+ is bonded in a distorted trigonal planar geometry to three equivalent P3- atoms. There are one shorter (2.32 Å) and two longer (2.36 Å) Cu–P bond lengths. P3- is bonded in a 9-coordinate geometry to two equivalent Ba2+ and seven Cu+1.25+ atoms.