Materials Data on LiMn4(PO4)3 by Materials Project

Abstract

LiMn4(PO4)3 crystallizes in the hexagonal P6_3 space group. The structure is three-dimensional. Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are three shorter (2.17 Å) and three longer (2.46 Å) Li–O bond lengths. There are two inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded to five O2- atoms to form distorted MnO5 trigonal bipyramids that share corners with three equivalent PO4 tetrahedra, corners with four equivalent MnO5 trigonal bipyramids, and an edgeedge with one PO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 2.08–2.35 Å. In the second Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are three shorter (2.22 Å) and three longer (2.29 Å) Mn–O bond lengths. P5+ is bonded to four O2- atoms to form PO4 tetrahedra that share corners with three equivalent MnO5 trigonal bipyramids and an edgeedge with one MnO5 trigonal bipyramid. There are a spread of P–O bond distances ranging from 1.53–1.57 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Mn2+ and one P5+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent Mn2+ and one P5+ atom. In the third O2- site, O2- is bonded to one Li1+, two Mn2+, and one P5+ atom to form distorted edge-sharing OLiMn2P tetrahedra. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Mn2+, and one P5+ atom.