Materials Data on Li3CrP2HO8 by Materials Project
Li3CrP2HO8 crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 3-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 2.00–2.65 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with six equivalent PO4 tetrahedra and edges with two equivalent CrO6 octahedra. There are a spread of Li–O bond distances ranging from 2.09–2.37 Å. Cr2+ is bonded to six O2- atoms to form CrO6 octahedra that share corners with six equivalent PO4 tetrahedra and edges with two equivalent LiO6 octahedra. There are a spread of Cr–O bond distances ranging from 2.07–2.44 Å. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent LiO6 octahedra and corners with three equivalent CrO6 octahedra. The corner-sharing octahedra tilt angles range from 39–59°. There are a spread of P–O bond distances ranging from 1.53–1.59 Å. H1+ is bonded in a linear geometry to two equivalent O2- atoms. Both H–O bond lengths are 1.21 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Cr2+, and one P5+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+, one P5+, and one H1+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to three Li1+, one Cr2+, and one P5+ atom. In the fourth O2- site, O2- is bonded to two Li1+, one Cr2+, and one P5+ atom to form distorted corner-sharing OLi2CrP tetrahedra.