Materials Data on Sr2CoWO6 by Materials Project

Abstract

Sr2CoWO6 crystallizes in the tetragonal I4/m space group. The structure is three-dimensional. Sr2+ is bonded in a 12-coordinate geometry to twelve O2- atoms. There are a spread of Sr–O bond distances ranging from 2.62–3.12 Å. W6+ is bonded to six O2- atoms to form WO6 octahedra that share corners with six equivalent CoO6 octahedra. The corner-sharing octahedra tilt angles range from 0–21°. All W–O bond lengths are 1.95 Å. Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with six equivalent WO6 octahedra. The corner-sharing octahedra tilt angles range from 0–21°. There are four shorter (2.07 Å) and two longer (2.18 Å) Co–O bond lengths. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to four equivalent Sr2+, one W6+, and one Co2+ atom. In the second O2- site, O2- is bonded to four equivalent Sr2+, one W6+, and one Co2+ atom to form a mixture of distorted edge and corner-sharing OSr4CoW octahedra. The corner-sharing octahedra tilt angles range from 0–5°.