Materials Data on Li2Nb4O11 by Materials Project
Li2Nb4O11 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Li1+ is bonded in a 1-coordinate geometry to five O2- atoms. There are a spread of Li–O bond distances ranging from 1.91–2.71 Å. There are two inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Nb–O bond distances ranging from 1.77–2.50 Å. In the second Nb5+ site, Nb5+ is bonded in a 4-coordinate geometry to five O2- atoms. There are a spread of Nb–O bond distances ranging from 1.79–2.27 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to three Nb5+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Nb5+ atoms. In the third O2- site, O2- is bonded in a bent 150 degrees geometry to one Li1+ and one Nb5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Li1+ and two Nb5+ atoms. In the fifth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Li1+ and one Nb5+ atom. In the sixth O2- site, O2- is bonded in a linear geometry to two equivalent Nb5+ atoms.