Materials Data on Li2CrO2 by Materials Project
Li2CrO2 is Spinel-like structured and crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. Li1+ is bonded to four equivalent O2- atoms to form a mixture of distorted edge and corner-sharing LiO4 tetrahedra. There are two shorter (1.98 Å) and two longer (2.02 Å) Li–O bond lengths. Cr2+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Cr–O bond lengths are 2.06 Å. O2- is bonded to four equivalent Li1+ and two equivalent Cr2+ atoms to form a mixture of edge and corner-sharing OLi4Cr2 octahedra. The corner-sharing octahedra tilt angles range from 0–42°.