Materials Data on AgSbWO7 by Materials Project

Abstract

WAgSbO7 crystallizes in the orthorhombic Imma space group. The structure is three-dimensional. W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent WO6 octahedra and corners with four equivalent SbO6 octahedra. The corner-sharing octahedra tilt angles range from 36–40°. There is two shorter (1.91 Å) and four longer (1.94 Å) W–O bond length. Ag3+ is bonded in a distorted linear geometry to eight O2- atoms. There are a spread of Ag–O bond distances ranging from 2.01–2.69 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with two equivalent SbO6 octahedra and corners with four equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 40–47°. There are four shorter (1.99 Å) and two longer (2.02 Å) Sb–O bond lengths. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 120 degrees geometry to two equivalent Ag3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ag3+ and two equivalent Sb5+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to two equivalent W6+ atoms. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to one W6+, one Ag3+, and one Sb5+ atom.