Materials Data on MgWO3 by Materials Project

Abstract

MgWO3 crystallizes in the triclinic P1 space group. The structure is three-dimensional. Mg2+ is bonded in a pentagonal planar geometry to five O2- atoms. There are a spread of Mg–O bond distances ranging from 2.18–2.23 Å. W4+ is bonded to six O2- atoms to form distorted corner-sharing WO6 octahedra. The corner-sharing octahedral tilt angles are 18°. There are a spread of W–O bond distances ranging from 1.96–2.24 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent Mg2+ and two equivalent W4+ atoms. In the second O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent Mg2+ and two equivalent W4+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Mg2+ and two equivalent W4+ atoms.