Materials Data on LiCr(MoO4)2 by Materials Project
LiCr(MoO4)2 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.02–2.26 Å. There are two inequivalent Mo6+ sites. In the first Mo6+ site, Mo6+ is bonded to four O2- atoms to form MoO4 tetrahedra that share corners with three equivalent CrO6 octahedra. The corner-sharing octahedra tilt angles range from 19–45°. There are a spread of Mo–O bond distances ranging from 1.77–1.83 Å. In the second Mo6+ site, Mo6+ is bonded to four O2- atoms to form distorted MoO4 tetrahedra that share corners with three equivalent CrO6 octahedra. The corner-sharing octahedra tilt angles range from 36–65°. There are a spread of Mo–O bond distances ranging from 1.73–1.91 Å. Cr3+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with six MoO4 tetrahedra and an edgeedge with one CrO6 octahedra. There are a spread of Cr–O bond distances ranging from 1.99–2.01 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to one Mo6+ and two equivalent Cr3+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to one Li1+ and one Mo6+ atom. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo6+ and one Cr3+ atom. In the fourth O2- site, O2- is bonded in a bent 150 degrees geometry to one Mo6+ and one Cr3+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Mo6+, and one Cr3+ atom. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one Mo6+, and one Cr3+ atom. In the seventh O2- site, O2- is bonded in a bent 150 degrees geometry to one Li1+ and one Mo6+ atom. In the eighth O2- site, O2- is bonded in a bent 150 degrees geometry to one Li1+ and one Mo6+ atom.