Materials Data on LaPO4 by Materials Project

Abstract

LaPO4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.44–2.83 Å. P5+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of P–O bond distances ranging from 1.54–1.58 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to three equivalent La3+ and one P5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent La3+ and one P5+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent La3+ and one P5+ atom.