Materials Data on LiFeF4 by Materials Project

Abstract

LiFeF4 crystallizes in the triclinic P1 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 F1- atoms. There are a spread of Li–F bond distances ranging from 1.94–2.49 Å. In the second Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Li–F bond distances ranging from 1.94–2.49 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Fe–F bond distances ranging from 1.82–2.48 Å. In the second Fe3+ site, Fe3+ is bonded in a 6-coordinate geometry to six F1- atoms. There are a spread of Fe–F bond distances ranging from 1.83–2.48 Å. There are eight inequivalent F1- sites. In the first F1- site, F1- is bonded in a distorted trigonal planar geometry to two Li1+ and one Fe3+ atom. In the second F1- site, F1- is bonded in a linear geometry to one Li1+ and one Fe3+ atom. In the third F1- site, F1- is bonded to one Li1+ and three Fe3+ atoms to form a mixture of distorted corner and edge-sharing FLiFe3 trigonal pyramids. In the fourth F1- site, F1- is bonded in a distorted trigonal planar geometry to two equivalent Li1+ and one Fe3+ atom. In the fifth F1- site, F1- is bonded in a distorted trigonal planar geometry to two equivalent Li1+ and one Fe3+ atom. In the sixth F1- site, F1- is bonded to one Li1+ and three Fe3+ atoms to form a mixture of distorted corner and edge-sharing FLiFe3 trigonal pyramids. In the seventh F1- site, F1- is bonded in a linear geometry to one Li1+ and one Fe3+ atom. In the eighth F1- site, F1- is bonded in a distorted trigonal planar geometry to two Li1+ and one Fe3+ atom.