Materials Data on Li2SO4 by Materials Project
Li2SO4 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with two equivalent LiO4 tetrahedra, corners with four equivalent SO4 tetrahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.96–2.01 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four LiO4 tetrahedra and corners with four equivalent SO4 tetrahedra. There are a spread of Li–O bond distances ranging from 1.95–2.01 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with eight LiO4 tetrahedra. All S–O bond lengths are 1.49 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a trigonal planar geometry to two equivalent Li1+ and one S6+ atom. In the second O2- site, O2- is bonded in a trigonal planar geometry to two Li1+ and one S6+ atom. In the third O2- site, O2- is bonded in a trigonal planar geometry to two Li1+ and one S6+ atom. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Li1+ and one S6+ atom.