Materials Data on LaTi6O12 by Materials Project
LaTi6O12 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. La3+ is bonded in a 4-coordinate geometry to four O2- atoms. There are two shorter (2.51 Å) and two longer (2.52 Å) La–O bond lengths. There are four inequivalent Ti+3.50+ sites. In the first Ti+3.50+ site, Ti+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. There are a spread of Ti–O bond distances ranging from 1.95–2.09 Å. In the second Ti+3.50+ site, Ti+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. There are a spread of Ti–O bond distances ranging from 1.91–2.07 Å. In the third Ti+3.50+ site, Ti+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–52°. There are a spread of Ti–O bond distances ranging from 1.91–2.10 Å. In the fourth Ti+3.50+ site, Ti+3.50+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing TiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–51°. There are a spread of Ti–O bond distances ranging from 1.94–2.06 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.50+ atoms. In the second O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.50+ atoms. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.50+ atoms. In the fourth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one La3+ and three Ti+3.50+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to three Ti+3.50+ atoms. In the sixth O2- site, O2- is bonded in a distorted T-shaped geometry to three Ti+3.50+ atoms. In the seventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one La3+ and three Ti+3.50+ atoms. In the eighth O2- site, O2- is bonded in a distorted trigonal planar geometry to three Ti+3.50+ atoms.