DOI: 10.17188/1270244
title: Materials Data on Li3Ti4O8 by Materials Project

description: Li3Ti4O8 crystallizes in the monoclinic P2 space group. The structure is three-dimensional. there are three inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with four equivalent TiO6 octahedra, corners with eight LiO6 octahedra, edges with four TiO6 octahedra, and faces with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 40–55°. There are a spread of Li–O bond distances ranging from 1.94–2.43 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with four equivalent LiO6 octahedra, corners with four equivalent TiO6 octahedra, edges with two equivalent LiO6 octahedra, edges with four TiO6 octahedra, and faces with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 40–51°. There are a spread of Li–O bond distances ranging from 1.91–2.28 Å. In the third Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with four equivalent LiO6 octahedra, corners with four equivalent TiO6 octahedra, edges with two equivalent LiO6 octahedra, edges with four TiO6 octahedra, and faces with two equivalent TiO6 octahedra. The corner-sharing octahedra tilt angles range from 42–52°. There are a spread of Li–O bond distances ranging from 1.93–2.24 Å. There are four inequivalent Ti+3.25+ sites. In the first Ti+3.25+ site, Ti+3.25+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent LiO6 octahedra, corners with eight TiO6 octahedra, edges with two equivalent LiO6 octahedra, edges with two equivalent TiO6 octahedra, and faces with two equivalent LiO6 octahedra. The corner-sharing octahedra tilt angles range from 43–52°. There are a spread of Ti–O bond distances ranging from 2.05–2.09 Å. In the second Ti+3.25+ site, Ti+3.25+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent LiO6 octahedra, corners with eight TiO6 octahedra, edges with two equivalent TiO6 octahedra, and edges with four LiO6 octahedra. The corner-sharing octahedra tilt angles range from 45–55°. There are a spread of Ti–O bond distances ranging from 2.05–2.08 Å. In the third Ti+3.25+ site, Ti+3.25+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent LiO6 octahedra, corners with eight TiO6 octahedra, edges with two equivalent LiO6 octahedra, edges with two equivalent TiO6 octahedra, and faces with two equivalent LiO6 octahedra. The corner-sharing octahedra tilt angles range from 42–51°. There are a spread of Ti–O bond distances ranging from 2.00–2.12 Å. In the fourth Ti+3.25+ site, Ti+3.25+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with eight TiO6 octahedra, edges with two equivalent TiO6 octahedra, edges with four LiO6 octahedra, and faces with two equivalent LiO6 octahedra. The corner-sharing octahedra tilt angles range from 42–49°. There are a spread of Ti–O bond distances ranging from 1.99–2.10 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to two Li1+ and three Ti+3.25+ atoms. In the second O2- site, O2- is bonded to two Li1+ and three Ti+3.25+ atoms to form a mixture of distorted edge and corner-sharing OLi2Ti3 trigonal bipyramids. In the third O2- site, O2- is bonded in a 6-coordinate geometry to three Li1+ and three Ti+3.25+ atoms. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to two Li1+ and three Ti+3.25+ atoms.