Materials Data on Li3FeBO4 by Materials Project
Li3FeBO4 crystallizes in the tetragonal I4_1/a space group. The structure is three-dimensional. there are three inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form distorted LiO4 tetrahedra that share corners with two equivalent LiO4 tetrahedra, corners with four equivalent BO4 tetrahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.91–2.22 Å. In the second Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.88–2.23 Å. In the third Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are a spread of Li–O bond distances ranging from 1.90–2.18 Å. Fe2+ is bonded in a square co-planar geometry to four O2- atoms. There are a spread of Fe–O bond distances ranging from 2.01–2.10 Å. B3+ is bonded to four O2- atoms to form BO4 tetrahedra that share corners with four equivalent LiO4 tetrahedra. There are a spread of B–O bond distances ranging from 1.49–1.54 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three Li1+, one Fe2+, and one B3+ atom. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three Li1+, one Fe2+, and one B3+ atom. In the third O2- site, O2- is bonded in a 6-coordinate geometry to four Li1+, one Fe2+, and one B3+ atom. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to three Li1+, one Fe2+, and one B3+ atom.