Materials Data on Mo2P2O11 by Materials Project

Abstract

(MoO2)2P2O7 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Mo6+ sites. In the first Mo6+ site, Mo6+ is bonded to six O2- atoms to form distorted MoO6 octahedra that share a cornercorner with one MoO6 octahedra and corners with four PO4 tetrahedra. The corner-sharing octahedral tilt angles are 27°. There are a spread of Mo–O bond distances ranging from 1.71–2.19 Å. In the second Mo6+ site, Mo6+ is bonded to six O2- atoms to form distorted MoO6 octahedra that share a cornercorner with one MoO6 octahedra and corners with four PO4 tetrahedra. The corner-sharing octahedral tilt angles are 27°. There are a spread of Mo–O bond distances ranging from 1.69–2.19 Å. There are two inequivalent P5+ sites. In the first P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four MoO6 octahedra. The corner-sharing octahedra tilt angles range from 34–42°. There is one shorter (1.51 Å) and three longer (1.56 Å) P–O bond length. In the second P5+ site, P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with four MoO6 octahedra. The corner-sharing octahedra tilt angles range from 33–50°. There are a spread of P–O bond distances ranging from 1.53–1.58 Å. There are eleven 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 single-bond geometry to one Mo6+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to one Mo6+ and one P5+ atom. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one Mo6+ and one P5+ atom. In the fifth O2- site, O2- is bonded in a single-bond geometry to one Mo6+ atom. In the sixth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo6+ and one P5+ atom. In the seventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo6+ and one P5+ atom. In the eighth O2- site, O2- is bonded in a distorted bent 120 degrees geometry to one Mo6+ and one P5+ atom. In the ninth O2- site, O2- is bonded in a bent 150 degrees geometry to two Mo6+ atoms. In the tenth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo6+ and one P5+ atom. In the eleventh O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Mo6+ and one P5+ atom.