Materials Data on Li3FeS3 by Materials Project

Abstract

Li3FeS3 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 3-coordinate geometry to five S2- atoms. There are a spread of Li–S bond distances ranging from 2.38–3.01 Å. In the second Li1+ site, Li1+ is bonded in a 5-coordinate geometry to five S2- atoms. There are a spread of Li–S bond distances ranging from 2.50–2.93 Å. In the third Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four S2- atoms. There are a spread of Li–S bond distances ranging from 2.48–2.56 Å. Fe3+ is bonded to four S2- atoms to form edge-sharing FeS4 tetrahedra. There are a spread of Fe–S bond distances ranging from 2.20–2.26 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 4-coordinate geometry to three Li1+ and two equivalent Fe3+ atoms. In the second S2- site, S2- is bonded in a 7-coordinate geometry to six Li1+ and one Fe3+ atom. In the third S2- site, S2- is bonded to five Li1+ and one Fe3+ atom to form distorted corner-sharing SLi5Fe octahedra. The corner-sharing octahedra tilt angles range from 28–67°.