DOI: 10.17188/1294645
title: Materials Data on Li4Nb3Fe2Ni3O16 by Materials Project

description: Li4Nb3Fe2Ni3O16 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 three equivalent FeO6 octahedra, corners with four NbO6 octahedra, and corners with five NiO6 octahedra. The corner-sharing octahedra tilt angles range from 48–67°. There are a spread of Li–O bond distances ranging from 1.98–2.10 Å. In the second 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 NiO6 octahedra, corners with three equivalent FeO6 octahedra, an edgeedge with one NiO6 octahedra, and edges with two NbO6 octahedra. The corner-sharing octahedra tilt angles range from 55–73°. There are a spread of Li–O bond distances ranging from 1.80–2.23 Å. In the third Li1+ site, Li1+ is bonded to four O2- atoms to form distorted LiO4 tetrahedra that share a cornercorner with one NiO6 octahedra, corners with two NbO6 octahedra, an edgeedge with one NbO6 octahedra, and edges with two NiO6 octahedra. The corner-sharing octahedra tilt angles range from 58–65°. There are a spread of Li–O bond distances ranging from 1.83–2.04 Å. In the fourth Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share corners with four NiO6 octahedra and corners with five NbO6 octahedra. The corner-sharing octahedra tilt angles range from 56–63°. There are a spread of Li–O bond distances ranging from 1.97–2.06 Å. There are three inequivalent Nb5+ sites. In the first Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four LiO4 tetrahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent NiO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. The corner-sharing octahedral tilt angles are 52°. There are a spread of Nb–O bond distances ranging from 1.97–2.03 Å. In the second Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four LiO4 tetrahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent NiO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 51–53°. There are a spread of Nb–O bond distances ranging from 1.96–2.05 Å. In the third Nb5+ site, Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, an edgeedge with one FeO6 octahedra, edges with four NiO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Nb–O bond distances ranging from 2.00–2.06 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Fe–O bond distances ranging from 1.92–2.40 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent NiO6 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 NiO6 octahedra. The corner-sharing octahedra tilt angles range from 49–53°. There are a spread of Fe–O bond distances ranging from 1.96–2.41 Å. There are three inequivalent Ni+2.33+ sites. In the first Ni+2.33+ site, Ni+2.33+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four LiO4 tetrahedra, edges with four NbO6 octahedra, and an edgeedge with one LiO4 trigonal pyramid. The corner-sharing octahedra tilt angles range from 49–50°. There are a spread of Ni–O bond distances ranging from 2.06–2.15 Å. In the second Ni+2.33+ site, Ni+2.33+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, an edgeedge with one FeO6 octahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent NiO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Ni–O bond distances ranging from 1.90–2.30 Å. In the third Ni+2.33+ site, Ni+2.33+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, an edgeedge with one FeO6 octahedra, edges with two equivalent NbO6 octahedra, edges with two equivalent NiO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Ni–O bond distances ranging from 2.06–2.17 Å. There are sixteen inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two Nb5+, and one Fe3+ atom. In the third O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, two Nb5+, and one Ni+2.33+ atom. In the fourth O2- site, O2- is bonded to one Li1+, two Nb5+, and one Ni+2.33+ atom to form distorted corner-sharing OLiNb2Ni tetrahedra. In the fifth O2- site, O2- is bonded to one Li1+, one Nb5+, and two Ni+2.33+ atoms to form distorted corner-sharing OLiNbNi2 tetrahedra. In the sixth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom. In the seventh O2- site, O2- is bonded to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom to form distorted OLiNbFeNi tetrahedra that share corners with three OLiNb2Ni tetrahedra and an edgeedge with one OLiNbFeNi tetrahedra. In the eighth O2- site, O2- is bonded to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom to form distorted OLiNbFeNi tetrahedra that share corners with three OLiNb2Ni tetrahedra and an edgeedge with one OLiNbFeNi tetrahedra. In the ninth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, two Nb5+, and one Fe3+ atom. In the tenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Fe3+, and two Ni+2.33+ atoms. In the eleventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom. In the twelfth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom. In the thirteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, and two Ni+2.33+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom. In the fifteenth O2- site, O2- is bonded to one Li1+, one Fe3+, and two Ni+2.33+ atoms to form distorted corner-sharing OLiFeNi2 tetrahedra. In the sixteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one Fe3+, and one Ni+2.33+ atom.