Materials Data on Li9Mn3(WO4)7 by Materials Project
Li9Mn3(WO4)7 crystallizes in the trigonal R3m space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.01–2.57 Å. In the second Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 2.00–2.61 Å. There are three inequivalent W+5.86+ sites. In the first W+5.86+ site, W+5.86+ is bonded in a 6-coordinate geometry to six O2- atoms. There are three shorter (1.89 Å) and three longer (2.24 Å) W–O bond lengths. In the second W+5.86+ site, W+5.86+ is bonded to six O2- atoms to form distorted edge-sharing WO6 octahedra. There are a spread of W–O bond distances ranging from 1.82–2.18 Å. In the third W+5.86+ site, W+5.86+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of W–O bond distances ranging from 1.80–1.83 Å. Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.06–2.53 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent Li1+, three W+5.86+, and one Mn2+ atom to form distorted edge-sharing OLi2MnW3 octahedra. In the second O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+, one W+5.86+, and one Mn2+ atom. In the third O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one W+5.86+, and one Mn2+ atom. In the fourth O2- site, O2- is bonded in a 6-coordinate geometry to three equivalent Li1+ and three equivalent W+5.86+ atoms. In the fifth O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Li1+ and one W+5.86+ atom. In the sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to three Li1+ and one W+5.86+ atom. In the seventh O2- site, O2- is bonded in a see-saw-like geometry to two equivalent Li1+, one W+5.86+, and one Mn2+ atom. In the eighth O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Li1+ and one W+5.86+ atom.