Materials Data on PH7N2O3 by Materials Project

Abstract

(NH4)2P2N2H4O5H2O crystallizes in the monoclinic P2_1/c space group. The structure is zero-dimensional and consists of eight ammonium molecules, four water molecules, and two P2N2H4O5 clusters. In each P2N2H4O5 cluster, there are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.68 Å) and one longer (1.69 Å) P–N bond length. There is one shorter (1.52 Å) and one longer (1.53 Å) P–O bond length. In the second P5+ site, P5+ is bonded to two N3- and two O2- atoms to form corner-sharing PN2O2 tetrahedra. There is one shorter (1.68 Å) and one longer (1.70 Å) P–N bond length. There is one shorter (1.50 Å) and one longer (1.54 Å) P–O bond length. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a distorted trigonal planar geometry to two P5+ and one H1+ atom. The N–H bond length is 1.03 Å. In the second N3- site, N3- is bonded in a distorted trigonal planar geometry to two P5+ and one H1+ atom. The N–H bond length is 1.03 Å. There are four inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the second H1+ site, H1+ is bonded in a single-bond geometry to one N3- atom. In the third H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.99 Å. In the fourth H1+ site, H1+ is bonded in a single-bond geometry to two O2- atoms. There is one shorter (1.00 Å) and one longer (1.70 Å) H–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a water-like geometry to two H1+ atoms. In the second O2- site, O2- is bonded in a distorted single-bond geometry to one P5+ atom. In the third O2- site, O2- is bonded in a distorted single-bond geometry to one P5+ atom. In the fourth O2- site, O2- is bonded in a distorted single-bond geometry to one P5+ and one H1+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one P5+ atom.