Materials Data on LiVSiO4 by Materials Project

Abstract

LiVSiO4 crystallizes in the hexagonal P6_422 space group. The structure is three-dimensional. there are three inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.05 Å) and two longer (2.07 Å) Li–O bond lengths. In the second Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Li–O bond lengths are 2.10 Å. In the third Li1+ site, Li1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Li–O bond lengths are 2.04 Å. There are two inequivalent V3+ sites. In the first V3+ site, V3+ is bonded to four O2- atoms to form VO4 tetrahedra that share corners with four SiO4 tetrahedra. There is two shorter (1.90 Å) and two longer (1.93 Å) V–O bond length. In the second V3+ site, V3+ is bonded to four O2- atoms to form VO4 tetrahedra that share corners with four SiO4 tetrahedra. All V–O bond lengths are 1.91 Å. There are two inequivalent Si4+ sites. In the first Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four VO4 tetrahedra. All Si–O bond lengths are 1.65 Å. In the second Si4+ site, Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with four VO4 tetrahedra. All Si–O bond lengths are 1.64 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one V3+, and one Si4+ atom. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+, one V3+, and one Si4+ atom. In the third O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one V3+, and one Si4+ atom. In the fourth O2- site, O2- is bonded in a distorted T-shaped geometry to one Li1+, one V3+, and one Si4+ atom.