Materials Data on SbPO4 by Materials Project

Abstract

SbPO4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Sb3+ is bonded to six O2- atoms to form distorted SbO6 pentagonal pyramids that share corners with four equivalent SbO6 pentagonal pyramids, corners with four equivalent PO4 tetrahedra, and an edgeedge with one PO4 tetrahedra. There are a spread of Sb–O bond distances ranging from 2.17–2.65 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four equivalent SbO6 pentagonal pyramids and an edgeedge with one SbO6 pentagonal pyramid. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Sb3+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sb3+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Sb3+ and one P5+ atom.