Materials Data on P2O5 by Materials Project

Abstract

P2O5 crystallizes in the orthorhombic Pmmm space group. The structure is three-dimensional. there are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to six O2- atoms to form corner-sharing PO6 octahedra. The corner-sharing octahedra tilt angles range from 0–54°. There are a spread of P–O bond distances ranging from 1.55–1.84 Å. In the second P5+ site, P5+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing PO6 octahedra. The corner-sharing octahedra tilt angles range from 0–54°. There is two shorter (1.63 Å) and four longer (1.91 Å) P–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to three P5+ atoms. In the second O2- site, O2- is bonded in a linear geometry to two equivalent P5+ atoms. In the third O2- site, O2- is bonded in a trigonal planar geometry to three P5+ atoms. In the fourth O2- site, O2- is bonded in a linear geometry to two equivalent P5+ atoms. In the fifth O2- site, O2- is bonded in a linear geometry to two equivalent P5+ atoms.