Materials Data on SrP2(HO)4 by Materials Project
SrP2(HO)4 crystallizes in the monoclinic C2/c space group. The structure is two-dimensional and consists of two SrP2(HO)4 sheets oriented in the (1, 0, 0) direction. Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.65–2.67 Å. P1+ is bonded in a distorted tetrahedral geometry to two H1+ and two O2- atoms. Both P–H bond lengths are 1.42 Å. Both P–O bond lengths are 1.53 Å. There are two inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one P1+ atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one P1+ atom. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Sr2+ and one P1+ atom. In the second O2- site, O2- is bonded in a distorted single-bond geometry to two equivalent Sr2+ and one P1+ atom.