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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LiLaTiO4 by Materials Project

LiLaTiO4 crystallizes in the tetragonal P4/nmm space group. The structure is three-dimensional. Li1+ is bonded to four equivalent O2- atoms to form a mixture of distorted edge and corner-sharing LiO4 trigonal pyramids. All Li–O bond lengths are 2.03 Å. La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.37–2.72 Å. Ti4+ is bonded in a 5-coordinate geometry to five O2- atoms. There is one shorter (1.79 Å) and four longer (1.95 Å) Ti–O bond length. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to five equivalent La3+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to four equivalent Li1+ and one Ti4+ atom. In the third O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent La3+ and two equivalent Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2La2Ti3O10 by Materials Project

Li2La2Ti3O10 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Li1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. All Li–O bond lengths are 2.05 Å. La3+ is bonded to twelve O2- atoms to form distorted LaO12 cuboctahedra that share corners with eight equivalent LaO12 cuboctahedra, faces with five equivalent LaO12 cuboctahedra, and faces with four equivalent TiO6 octahedra. There are a spread of La–O bond distances ranging from 2.54–2.91 Å. There are two inequivalent Ti4+ sites. In the first Ti4+ site, Ti4+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ti–O bond distances ranging from 1.79–2.28 Å. In the second Ti4+ site, Ti4+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with four equivalent TiO6 octahedra and faces with eight equivalent LaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. All Ti–O bond lengths are 1.94 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 2-coordinate geometry to two equivalent La3+ and two equivalent Ti4+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to four equivalent Li1+ and one Ti4+ atom. In the third O2- site, O2- is bonded in a linear geometry to four equivalent La3+ and two equivalent Ti4+ atoms. In the fourth O2- site, O2- is bonded in a 6-coordinate geometry to four equivalent La3+ and two Ti4+ atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiLa3Ti4O12 by Materials Project

La3LiTi4O12 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Li1+ is bonded to twelve O2- atoms to form LiO12 cuboctahedra that share corners with four equivalent LiO12 cuboctahedra, corners with eight equivalent LaO12 cuboctahedra, faces with six LaO12 cuboctahedra, and faces with eight equivalent TiO6 octahedra. There are four shorter (2.78 Å) and eight longer (2.84 Å) Li–O bond lengths. There are two inequivalent La3+ sites. In the first La3+ site, La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with four equivalent LiO12 cuboctahedra, corners with eight LaO12 cuboctahedra, a faceface with one LiO12 cuboctahedra, faces with five LaO12 cuboctahedra, and faces with eight equivalent TiO6 octahedra. There are a spread of La–O bond distances ranging from 2.74–2.78 Å. In the second La3+ site, La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with twelve LaO12 cuboctahedra, faces with two equivalent LaO12 cuboctahedra, faces with four equivalent LiO12 cuboctahedra, and faces with eight equivalent TiO6 octahedra. There are four shorter (2.78 Å) and eight longer (2.79 Å) La–O bond lengths. Ti+3.50+ is bonded to six O2- atoms to form TiO6 octahedra that share corners with six equivalent TiO6 octahedra, faces with two equivalent LiO12 cuboctahedra, and faces with six LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–5°. There are a spread of Ti–O bond distances ranging from 1.93–2.01 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted linear geometry to two equivalent Li1+, two equivalent La3+, and two equivalent Ti+3.50+ atoms. In the second O2- site, O2- is bonded in a distorted linear geometry to one Li1+, three La3+, and two equivalent Ti+3.50+ atoms. In the third O2- site, O2- is bonded in a distorted linear geometry to four equivalent La3+ and two equivalent Ti+3.50+ atoms.

36 MATERIALS SCIENCE↗