Materials Data on BePH3O5 by Materials Project
BePH3O5 crystallizes in the orthorhombic Pna2_1 space group. The structure is three-dimensional. Be2+ is bonded to four O2- atoms to form BeO4 tetrahedra that share corners with four equivalent PO4 tetrahedra. There are a spread of Be–O bond distances ranging from 1.58–1.80 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four equivalent BeO4 tetrahedra. There are a spread of P–O bond distances ranging from 1.51–1.63 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the second H1+ site, H1+ is bonded in a single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. In the third H1+ site, H1+ is bonded in a linear geometry to two O2- atoms. There is one shorter (1.06 Å) and one longer (1.45 Å) H–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal non-coplanar geometry to three H1+ atoms. In the second O2- site, O2- is bonded in a linear geometry to one Be2+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Be2+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Be2+, one P5+, and one H1+ atom. In the fifth O2- site, O2- is bonded in a linear geometry to one Be2+ and one P5+ atom.