Materials Data on Co3SbO8 by Materials Project
Co3SbO8 is beta Vanadium nitride-derived structured and crystallizes in the monoclinic Cc space group. The structure is three-dimensional. there are three inequivalent Co+3.67+ sites. In the first Co+3.67+ site, Co+3.67+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, and edges with four CoO6 octahedra. The corner-sharing octahedra tilt angles range from 53–54°. There are a spread of Co–O bond distances ranging from 1.88–1.93 Å. In the second Co+3.67+ site, Co+3.67+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, and edges with four CoO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Co–O bond distances ranging from 1.87–1.91 Å. In the third Co+3.67+ site, Co+3.67+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent SbO6 octahedra, an edgeedge with one SbO6 octahedra, and edges with four CoO6 octahedra. The corner-sharing octahedral tilt angles are 53°. There are a spread of Co–O bond distances ranging from 1.84–1.94 Å. Sb5+ is bonded to six O2- atoms to form SbO6 octahedra that share corners with six CoO6 octahedra and edges with three CoO6 octahedra. The corner-sharing octahedra tilt angles range from 53–54°. There are a spread of Sb–O bond distances ranging from 1.96–2.09 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two Co+3.67+ and one Sb5+ atom. In the second O2- site, O2- is bonded in a 3-coordinate geometry to two Co+3.67+ and one Sb5+ atom. In the third O2- site, O2- is bonded in a 3-coordinate geometry to three Co+3.67+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Co+3.67+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Co+3.67+ and one Sb5+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to two Co+3.67+ and one Sb5+ atom. In the seventh O2- site, O2- is bonded in a 3-coordinate geometry to two Co+3.67+ and one Sb5+ atom. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Co+3.67+ and one Sb5+ atom.