Materials Data on Li2GaSi by Materials Project
LiLiGaSi is alpha bismuth trifluoride-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional and consists of four lithium molecules and one LiGaSi framework. In the LiGaSi framework, Li1+ is bonded to four equivalent Si4- atoms to form LiSi4 tetrahedra that share corners with four equivalent GaSi4 tetrahedra, corners with twelve equivalent LiSi4 tetrahedra, and edges with six equivalent GaSi4 tetrahedra. All Li–Si bond lengths are 2.73 Å. Ga2+ is bonded to four equivalent Si4- atoms to form GaSi4 tetrahedra that share corners with four equivalent LiSi4 tetrahedra, corners with twelve equivalent GaSi4 tetrahedra, and edges with six equivalent LiSi4 tetrahedra. All Ga–Si bond lengths are 2.73 Å. Si4- is bonded in a distorted body-centered cubic geometry to four equivalent Li1+ and four equivalent Ga2+ atoms.