Materials Data on MoPH3O7 by Materials Project
MoPH3O7 crystallizes in the monoclinic P2_1/m space group. The structure is two-dimensional and consists of one MoPH3O7 sheet oriented in the (1, 0, -1) direction. Mo6+ is bonded to six O2- atoms to form distorted MoO6 octahedra that share corners with three equivalent PO4 tetrahedra. There are a spread of Mo–O bond distances ranging from 1.72–2.28 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent MoO6 octahedra. The corner-sharing octahedra tilt angles range from 24–36°. There are a spread of P–O bond distances ranging from 1.51–1.58 Å. There are three inequivalent H1+ sites. In the first H1+ site, H1+ is bonded in a single-bond geometry to two O2- atoms. There is one shorter (1.01 Å) and one longer (1.71 Å) H–O bond length. 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 single-bond geometry to one O2- atom. The H–O bond length is 0.98 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo6+ and one P5+ atom. In the second O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo6+ and one P5+ atom. In the third O2- site, O2- is bonded in a bent 120 degrees geometry to one P5+ and one H1+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo6+ and one H1+ atom. In the fifth O2- site, O2- is bonded in a distorted water-like geometry to one Mo6+ and two H1+ atoms. In the sixth O2- site, O2- is bonded in a single-bond geometry to one Mo6+ atom.