DOI: 10.17188/1304353
title: Materials Data on Li7V5O12 by Materials Project

description: Li7V5O12 is Caswellsilverite-like structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. there are five inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO6 octahedra, edges with five VO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 5–11°. There are a spread of Li–O bond distances ranging from 2.03–2.33 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with three LiO6 octahedra, corners with three VO6 octahedra, edges with six LiO6 octahedra, and edges with six VO6 octahedra. The corner-sharing octahedra tilt angles range from 0–11°. There are a spread of Li–O bond distances ranging from 2.05–2.24 Å. In the third Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with three LiO6 octahedra, corners with three VO6 octahedra, edges with six LiO6 octahedra, and edges with six VO6 octahedra. The corner-sharing octahedra tilt angles range from 3–14°. There are a spread of Li–O bond distances ranging from 2.00–2.37 Å. In the fourth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO6 octahedra, edges with four LiO6 octahedra, and edges with eight VO6 octahedra. The corner-sharing octahedra tilt angles range from 6–8°. There are a spread of Li–O bond distances ranging from 2.06–2.30 Å. In the fifth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO6 octahedra, edges with five VO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 6–14°. There are four shorter (2.12 Å) and two longer (2.15 Å) Li–O bond lengths. There are four inequivalent V+3.40+ sites. In the first V+3.40+ site, V+3.40+ is bonded to six O2- atoms to form VO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO6 octahedra, edges with five VO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–10°. There are a spread of V–O bond distances ranging from 2.03–2.07 Å. In the second V+3.40+ site, V+3.40+ is bonded to six O2- atoms to form VO6 octahedra that share corners with three LiO6 octahedra, corners with three VO6 octahedra, edges with three VO6 octahedra, and edges with nine LiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–9°. There are a spread of V–O bond distances ranging from 1.85–2.10 Å. In the third V+3.40+ site, V+3.40+ is bonded to six O2- atoms to form VO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO6 octahedra, edges with five VO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 0–9°. There are a spread of V–O bond distances ranging from 2.04–2.08 Å. In the fourth V+3.40+ site, V+3.40+ is bonded to six O2- atoms to form VO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO6 octahedra, edges with two equivalent VO6 octahedra, and edges with ten LiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–10°. There are a spread of V–O bond distances ranging from 2.02–2.11 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to four Li1+ and two V+3.40+ atoms to form a mixture of corner and edge-sharing OLi4V2 octahedra. The corner-sharing octahedra tilt angles range from 1–14°. In the second O2- site, O2- is bonded to three Li1+ and three V+3.40+ atoms to form a mixture of corner and edge-sharing OLi3V3 octahedra. The corner-sharing octahedra tilt angles range from 1–14°. In the third O2- site, O2- is bonded to four Li1+ and two V+3.40+ atoms to form a mixture of corner and edge-sharing OLi4V2 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. In the fourth O2- site, O2- is bonded to three Li1+ and three V+3.40+ atoms to form a mixture of corner and edge-sharing OLi3V3 octahedra. The corner-sharing octahedra tilt angles range from 0–12°. In the fifth O2- site, O2- is bonded to four Li1+ and two V+3.40+ atoms to form a mixture of corner and edge-sharing OLi4V2 octahedra. The corner-sharing octahedra tilt angles range from 4–7°. In the sixth O2- site, O2- is bonded to three Li1+ and three V+3.40+ atoms to form a mixture of corner and edge-sharing OLi3V3 octahedra. The corner-sharing octahedra tilt angles range from 1–8°.