Materials Data on LiMnSiO4 by Materials Project

Abstract

Li1MnSiO4 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (1.96 Å) and two longer (2.10 Å) Li–O bond lengths. Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six equivalent SiO4 tetrahedra and edges with two equivalent MnO6 octahedra. There are two shorter (1.90 Å) and four longer (2.16 Å) Mn–O bond lengths. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with six equivalent MnO6 octahedra. The corner-sharing octahedra tilt angles range from 49–54°. There is two shorter (1.63 Å) and two longer (1.67 Å) Si–O bond length. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two equivalent Mn3+, and one Si4+ atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to one Li1+, one Mn3+, and one Si4+ atom.