Materials Data on LiCuPO4 by Materials Project

Abstract

LiCuPO4 crystallizes in the trigonal P31c space group. The structure is three-dimensional. Li1+ is bonded in a 4-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.05–2.74 Å. Cu2+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Cu–O bond distances ranging from 1.91–2.12 Å. There are three inequivalent P5+ sites. In the first P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.55 Å) and three longer (1.56 Å) P–O bond length. In the second P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is three shorter (1.54 Å) and one longer (1.62 Å) P–O bond length. In the third P5+ site, P5+ is bonded in a tetrahedral geometry to four O2- atoms. There is one shorter (1.54 Å) and three longer (1.57 Å) P–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cu2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Li1+, one Cu2+, and one P5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Cu2+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Li1+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a distorted tetrahedral geometry to three equivalent Cu2+ and one P5+ atom. In the sixth O2- site, O2- is bonded in a rectangular see-saw-like geometry to three equivalent Li1+ and one P5+ atom.