Materials Data on KP(HO)2 by Materials Project
KH2PO2 crystallizes in the monoclinic C2/c space group. The structure is three-dimensional. K1+ is bonded in a 6-coordinate geometry to six equivalent O2- atoms. There are a spread of K–O bond distances ranging from 2.78–2.96 Å. P5+ is bonded in a distorted tetrahedral geometry to two equivalent H1- and two equivalent O2- atoms. Both P–H bond lengths are 1.43 Å. Both P–O bond lengths are 1.52 Å. H1- is bonded in a single-bond geometry to one P5+ atom. O2- is bonded in a distorted single-bond geometry to three equivalent K1+ and one P5+ atom.