Materials Data on KPO3 by Materials Project

Abstract

KPO3 crystallizes in the monoclinic C2/m space group. The structure is two-dimensional and consists of two KPO3 sheets oriented in the (1, 0, 0) direction. K1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of K–O bond distances ranging from 2.73–2.83 Å. P5+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.49 Å) and one longer (1.50 Å) P–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent K1+ and one P5+ atom. In the second O2- site, O2- is bonded in a 1-coordinate geometry to one K1+ and one P5+ atom.