Materials Data on Zn3(PO4)2 by Materials Project

Abstract

Zn3(PO4)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Zn2+ sites. In the first Zn2+ site, Zn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Zn–O bond distances ranging from 1.96–2.45 Å. In the second Zn2+ site, Zn2+ is bonded to six O2- atoms to form ZnO6 octahedra that share corners with six equivalent PO4 tetrahedra. There are a spread of Zn–O bond distances ranging from 1.99–2.27 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent ZnO6 octahedra. The corner-sharing octahedra tilt angles range from 34–55°. There are a spread of P–O bond distances ranging from 1.54–1.57 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two Zn2+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Zn2+ and one P5+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to two Zn2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Zn2+ and one P5+ atom.