DOI: 10.17188/1303481
title: Materials Data on Li4Nb3V2Co3O16 by Materials Project

description: Li4Nb3V2Co3O16 is Hausmannite-derived structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are four inequivalent Li1+ sites. In the first Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four CoO6 octahedra and corners with five NbO6 octahedra. The corner-sharing octahedra tilt angles range from 46–64°. There are a spread of Li–O bond distances ranging from 1.95–2.05 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one CoO6 octahedra, corners with two NbO6 octahedra, an edgeedge with one NbO6 octahedra, and edges with two CoO6 octahedra. The corner-sharing octahedra tilt angles range from 61–66°. There are a spread of Li–O bond distances ranging from 1.82–2.09 Å. In the third Li1+ site, Li1+ is bonded to four O2- atoms to form distorted LiO4 trigonal pyramids that share a cornercorner with one NbO6 octahedra, corners with two CoO6 octahedra, corners with three equivalent VO6 octahedra, an edgeedge with one CoO6 octahedra, and edges with two NbO6 octahedra. The corner-sharing octahedra tilt angles range from 62–71°. There are a spread of Li–O bond distances ranging from 1.89–2.43 Å. In the fourth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with three equivalent VO6 octahedra, corners with four NbO6 octahedra, and corners with five CoO6 octahedra. The corner-sharing octahedra tilt angles range from 51–63°. There are a spread of Li–O bond distances ranging from 1.92–1.99 Å. There are three inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form distorted NbO6 octahedra that share corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, an edgeedge with one VO6 octahedra, edges with four CoO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Nb–O bond distances ranging from 1.91–2.34 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO4 tetrahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent CoO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 50–51°. There are a spread of Nb–O bond distances ranging from 2.01–2.07 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO4 tetrahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent CoO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 51–52°. There are a spread of Nb–O bond distances ranging from 1.99–2.08 Å. There are two inequivalent V+3.50+ sites. In the first V+3.50+ site, V+3.50+ is bonded to six O2- atoms to form VO6 octahedra that share corners with two equivalent CoO6 octahedra, corners with four NbO6 octahedra, corners with three equivalent LiO4 tetrahedra, corners with three equivalent LiO4 trigonal pyramids, an edgeedge with one NbO6 octahedra, and edges with two CoO6 octahedra. The corner-sharing octahedra tilt angles range from 50–55°. There are a spread of V–O bond distances ranging from 1.96–2.19 Å. In the second V+3.50+ site, V+3.50+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of V–O bond distances ranging from 1.75–2.37 Å. There are three inequivalent Co2+ sites. In the first Co2+ site, Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, an edgeedge with one VO6 octahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent CoO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Co–O bond distances ranging from 2.02–2.26 Å. In the second Co2+ site, Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, an edgeedge with one VO6 octahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent CoO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Co–O bond distances ranging from 2.01–2.24 Å. In the third Co2+ site, Co2+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with two equivalent VO6 octahedra, corners with four LiO4 tetrahedra, edges with four NbO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. The corner-sharing octahedral tilt angles are 55°. There are a spread of Co–O bond distances ranging from 2.06–2.27 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom. In the second O2- site, O2- is bonded to one Li1+, one V+3.50+, and two Co2+ atoms to form distorted corner-sharing OLiVCo2 tetrahedra. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, and two Co2+ atoms. In the fourth O2- site, O2- is bonded to one Li1+, one Nb5+, and two Co2+ atoms to form corner-sharing OLiNbCo2 tetrahedra. In the fifth O2- site, O2- is bonded to one Li1+, two Nb5+, and one Co2+ atom to form distorted corner-sharing OLiNb2Co tetrahedra. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom. In the seventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom. In the ninth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, one V+3.50+, and two Co2+ atoms. In the tenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, two Nb5+, and one V+3.50+ atom. In the eleventh O2- site, O2- is bonded to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom to form distorted OLiNbVCo tetrahedra that share corners with three OLiNb2Co tetrahedra and an edgeedge with one OLiNbVCo tetrahedra. In the twelfth O2- site, O2- is bonded to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom to form distorted OLiNbVCo tetrahedra that share corners with three OLiNb2Co tetrahedra and an edgeedge with one OLiNbVCo tetrahedra. In the thirteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, two Nb5+, and one Co2+ atom. In the fourteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom. In the fifteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two Nb5+, and one V+3.50+ atom. In the sixteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one V+3.50+, and one Co2+ atom.