Materials Data on LiCrPO5 by Materials Project

Abstract

LiCrPO5 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Li1+ is bonded to four O2- atoms to form distorted LiO4 tetrahedra that share corners with four equivalent CrO6 octahedra and corners with three equivalent PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–72°. There are a spread of Li–O bond distances ranging from 1.85–1.98 Å. Cr4+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with four equivalent LiO4 tetrahedra, corners with four equivalent PO4 tetrahedra, and edges with two equivalent CrO6 octahedra. There are a spread of Cr–O bond distances ranging from 1.87–2.08 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four equivalent CrO6 octahedra and corners with three equivalent LiO4 tetrahedra. The corner-sharing octahedra tilt angles range from 47–53°. There are a spread of P–O bond distances ranging from 1.49–1.60 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to one Li1+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two equivalent Cr4+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Cr4+, and one P5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Cr4+ and one P5+ atom.