Materials Data on LiMn4O8 by Materials Project

Abstract

LiMn4O8 is beta indium sulfide-derived structured and crystallizes in the monoclinic Cc space group. The structure is three-dimensional. Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.89–2.46 Å. There are four inequivalent Mn+3.75+ sites. In the first Mn+3.75+ site, Mn+3.75+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedra tilt angles range from 46–52°. There are a spread of Mn–O bond distances ranging from 1.91–2.02 Å. In the second Mn+3.75+ site, Mn+3.75+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedra tilt angles range from 47–53°. There are a spread of Mn–O bond distances ranging from 1.92–1.98 Å. In the third Mn+3.75+ site, Mn+3.75+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedra tilt angles range from 49–53°. There are a spread of Mn–O bond distances ranging from 1.92–2.05 Å. In the fourth Mn+3.75+ site, Mn+3.75+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing MnO6 octahedra. The corner-sharing octahedra tilt angles range from 46–51°. There are a spread of Mn–O bond distances ranging from 1.91–2.06 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Mn+3.75+ atoms. In the second O2- site, O2- is bonded to one Li1+ and three Mn+3.75+ atoms to form a mixture of distorted edge and corner-sharing OLiMn3 trigonal pyramids. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+ and three Mn+3.75+ atoms. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+ and three Mn+3.75+ atoms. In the fifth O2- site, O2- is bonded to one Li1+ and three Mn+3.75+ atoms to form a mixture of edge and corner-sharing OLiMn3 trigonal pyramids. In the sixth O2- site, O2- is bonded in a distorted trigonal non-coplanar geometry to three Mn+3.75+ atoms. In the seventh O2- site, O2- is bonded to one Li1+ and three Mn+3.75+ atoms to form a mixture of edge and corner-sharing OLiMn3 trigonal pyramids. In the eighth O2- site, O2- is bonded to one Li1+ and three Mn+3.75+ atoms to form a mixture of edge and corner-sharing OLiMn3 trigonal pyramids.