Materials Data on ZnP2O5 by Materials Project
ZnP2O5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. Zn2+ is bonded to six O2- atoms to form edge-sharing ZnO6 octahedra. There are a spread of Zn–O bond distances ranging from 2.03–2.18 Å. There are two inequivalent P4+ sites. In the first P4+ site, P4+ is bonded in a water-like geometry to two O2- atoms. There is one shorter (1.53 Å) and one longer (1.55 Å) P–O bond length. In the second P4+ site, P4+ is bonded in a bent 120 degrees geometry to two O2- atoms. Both P–O bond lengths are 1.52 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Zn2+ and one P4+ atom. In the second O2- site, O2- is bonded in a bent 120 degrees geometry to one Zn2+ and one P4+ atom. In the third O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one P4+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Zn2+ and one P4+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Zn2+ atom.