Materials Data on Li2SnCSO7 by Materials Project
Li2SnCSO7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. Li1+ is bonded to five O2- atoms to form distorted LiO5 trigonal bipyramids that share corners with two equivalent SO4 tetrahedra and edges with two equivalent LiO5 trigonal bipyramids. There are a spread of Li–O bond distances ranging from 1.99–2.54 Å. Sn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Sn–O bond distances ranging from 2.32–2.56 Å. C4+ is bonded in a trigonal planar geometry to three O2- atoms. There are a spread of C–O bond distances ranging from 1.27–1.33 Å. S6+ is bonded to four O2- atoms to form SO4 tetrahedra that share corners with four equivalent LiO5 trigonal bipyramids. There is one shorter (1.47 Å) and three longer (1.50 Å) S–O bond length. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to two equivalent Li1+ and one C4+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Li1+, one Sn2+, and one C4+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Li1+, one Sn2+, and one C4+ atom. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+, one Sn2+, and one S6+ atom. In the fifth O2- site, O2- is bonded in a distorted single-bond geometry to one Sn2+ and one S6+ atom. In the sixth O2- site, O2- is bonded in a 1-coordinate geometry to two equivalent Li1+ and one S6+ atom.