Materials Data on Cr(SbO3)2 by Materials Project

Abstract

Cr(SbO3)2 is zeta iron carbide-derived structured and crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Cr6+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with twelve equivalent SbO6 octahedra. The corner-sharing octahedra tilt angles range from 50–54°. There are two shorter (2.13 Å) and four longer (2.33 Å) Cr–O bond lengths. Sb3+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with six equivalent CrO6 octahedra and edges with three equivalent SbO6 octahedra. The corner-sharing octahedra tilt angles range from 50–54°. There are a spread of Sb–O bond distances ranging from 2.01–2.04 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr6+ and two equivalent Sb3+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Cr6+ and two equivalent Sb3+ atoms.