Materials Data on Li3Cu(TeO3)4 by Materials Project
Li3Cu(TeO3)4 is pyrite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are three inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Li–O bond distances ranging from 1.99–2.49 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with three TeO6 octahedra, edges with three TeO6 octahedra, and a faceface with one TeO6 octahedra. The corner-sharing octahedra tilt angles range from 60–63°. There are a spread of Li–O bond distances ranging from 2.00–2.30 Å. In the third Li1+ site, Li1+ is bonded to six O2- atoms to form distorted LiO6 octahedra that share corners with three TeO6 octahedra, edges with three TeO6 octahedra, and a faceface with one TeO6 octahedra. The corner-sharing octahedra tilt angles range from 64–66°. There are a spread of Li–O bond distances ranging from 2.05–2.35 Å. Cu1+ is bonded in a distorted trigonal planar geometry to three O2- atoms. There are a spread of Cu–O bond distances ranging from 1.97–1.99 Å. There are four inequivalent Te5+ sites. In the first Te5+ site, Te5+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with three LiO6 octahedra, corners with six TeO6 octahedra, and a faceface with one LiO6 octahedra. The corner-sharing octahedra tilt angles range from 42–66°. There are a spread of Te–O bond distances ranging from 2.07–2.33 Å. In the second Te5+ site, Te5+ is bonded to six O2- atoms to form distorted TeO6 octahedra that share corners with three LiO6 octahedra, corners with six TeO6 octahedra, and a faceface with one LiO6 octahedra. The corner-sharing octahedra tilt angles range from 41–64°. There are a spread of Te–O bond distances ranging from 2.02–2.43 Å. In the third Te5+ site, Te5+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with six TeO6 octahedra and edges with three LiO6 octahedra. The corner-sharing octahedra tilt angles range from 41–46°. There are a spread of Te–O bond distances ranging from 1.94–2.02 Å. In the fourth Te5+ site, Te5+ is bonded to six O2- atoms to form TeO6 octahedra that share corners with six TeO6 octahedra and edges with three LiO6 octahedra. The corner-sharing octahedra tilt angles range from 41–45°. There are a spread of Te–O bond distances ranging from 1.92–2.05 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two Te5+ atoms. In the second O2- site, O2- is bonded to two Li1+ and two Te5+ atoms to form distorted corner-sharing OLi2Te2 trigonal pyramids. In the third O2- site, O2- is bonded in a distorted see-saw-like geometry to two Li1+ and two Te5+ atoms. In the fourth O2- site, O2- is bonded to one Li1+, one Cu1+, and two Te5+ atoms to form distorted corner-sharing OLiCuTe2 tetrahedra. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and two Te5+ atoms. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and two Te5+ atoms. In the seventh O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, one Cu1+, and two Te5+ atoms. In the eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, one Cu1+, and two Te5+ atoms. In the ninth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Li1+ and two Te5+ atoms. In the tenth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and two Te5+ atoms. In the eleventh O2- site, O2- is bonded in a 3-coordinate geometry to one Li1+ and two Te5+ atoms. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to two Li1+ and two Te5+ atoms.