Materials Data on Bi(PO3)4 by Materials Project

Abstract

Bi(PO3)4 crystallizes in the orthorhombic Pbcn space group. The structure is three-dimensional. Bi5+ is bonded to six O2- atoms to form BiO6 octahedra that share corners with six PO4 tetrahedra. There are a spread of Bi–O bond distances ranging from 2.24–2.38 Å. There are two inequivalent P+4.75+ sites. In the first P+4.75+ site, P+4.75+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with two equivalent BiO6 octahedra and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedra tilt angles range from 49–51°. There is two shorter (1.52 Å) and two longer (1.59 Å) P–O bond length. In the second P+4.75+ site, P+4.75+ is bonded to four O2- atoms to form PO4 tetrahedra that share a cornercorner with one BiO6 octahedra and corners with two equivalent PO4 tetrahedra. The corner-sharing octahedral tilt angles are 44°. There are a spread of P–O bond distances ranging from 1.48–1.63 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to two P+4.75+ atoms. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Bi5+ and one P+4.75+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one Bi5+ and one P+4.75+ atom. In the fourth O2- site, O2- is bonded in a single-bond geometry to one P+4.75+ atom. In the fifth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to two P+4.75+ atoms. In the sixth O2- site, O2- is bonded in a 2-coordinate geometry to one Bi5+ and one P+4.75+ atom.