Materials Data on Li4Co2C4SO16 by Materials Project

Abstract

Li4Co2C4SO16 crystallizes in the orthorhombic Fddd space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with four equivalent LiO6 octahedra, edges with two equivalent CoO6 octahedra, and an edgeedge with one SO4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–79°. There are a spread of Li–O bond distances ranging from 2.17–2.30 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with four equivalent LiO6 octahedra, edges with two equivalent CoO6 octahedra, and an edgeedge with one SO4 tetrahedra. The corner-sharing octahedra tilt angles range from 57–79°. There are a spread of Li–O bond distances ranging from 2.15–2.44 Å. Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share edges with four LiO6 octahedra. There are a spread of Co–O bond distances ranging from 2.01–2.05 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.29 Å) and one longer (1.30 Å) C–O bond length. S6+ is bonded to four equivalent O2- atoms to form SO4 tetrahedra that share edges with four LiO6 octahedra. All S–O bond lengths are 1.49 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Co3+, and one C4+ atom. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to two Li1+ and one S6+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Co3+, and one C4+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one Co3+, and one C4+ atom.