DOI: 10.17188/1292619
title: Materials Data on Li4Mn3Nb3(FeO8)2 by Materials Project

description: Li4Nb3Mn3(FeO8)2 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 MnO6 octahedra and corners with five NbO6 octahedra. The corner-sharing octahedra tilt angles range from 55–66°. There are a spread of Li–O bond distances ranging from 1.99–2.20 Å. In the second Li1+ site, Li1+ is bonded to four O2- atoms to form LiO4 tetrahedra that share a cornercorner with one MnO6 octahedra, corners with two NbO6 octahedra, an edgeedge with one NbO6 octahedra, and edges with two MnO6 octahedra. The corner-sharing octahedra tilt angles range from 59–66°. There are a spread of Li–O bond distances ranging from 1.82–2.08 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 MnO6 octahedra, corners with three equivalent FeO6 octahedra, an edgeedge with one MnO6 octahedra, and edges with two NbO6 octahedra. The corner-sharing octahedra tilt angles range from 56–73°. There are a spread of Li–O bond distances ranging from 1.84–2.13 Å. In the fourth 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 MnO6 octahedra. The corner-sharing octahedra tilt angles range from 46–69°. There are a spread of Li–O bond distances ranging from 2.02–2.12 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 three LiO4 tetrahedra, a cornercorner with one LiO4 trigonal pyramid, an edgeedge with one FeO6 octahedra, edges with four MnO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Nb–O bond distances ranging from 2.00–2.07 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 MnO6 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 1.96–2.04 Å. In the third 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 MnO6 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 1.96–2.06 Å. There are three inequivalent Mn+2.33+ sites. In the first Mn+2.33+ site, Mn+2.33+ is bonded to six O2- atoms to form distorted MnO6 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 MnO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 1.94–2.42 Å. In the second Mn+2.33+ site, Mn+2.33+ is bonded to six O2- atoms to form MnO6 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 MnO6 octahedra, and an edgeedge with one LiO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 2.13–2.34 Å. In the third Mn+2.33+ site, Mn+2.33+ is bonded to six O2- atoms to form MnO6 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 50–51°. There are a spread of Mn–O bond distances ranging from 2.16–2.23 Å. There are two inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form distorted FeO6 octahedra that share corners with two equivalent MnO6 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 MnO6 octahedra. The corner-sharing octahedra tilt angles range from 50–53°. There are a spread of Fe–O bond distances ranging from 1.95–2.64 Å. In the second 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 1.94–2.44 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 Mn+2.33+, and one Fe3+ atom. In the second O2- site, O2- is bonded to one Li1+, two Mn+2.33+, and one Fe3+ atom to form a mixture of distorted corner and edge-sharing OLiMn2Fe trigonal pyramids. In the third O2- site, O2- is bonded to one Li1+, one Nb5+, and two Mn+2.33+ atoms to form distorted OLiMn2Nb trigonal pyramids that share corners with five OLiMn2Nb tetrahedra and an edgeedge with one OLiMn2Fe trigonal pyramid. In the fourth O2- site, O2- is bonded to one Li1+, one Nb5+, and two Mn+2.33+ atoms to form distorted corner-sharing OLiMn2Nb tetrahedra. In the fifth O2- site, O2- is bonded to one Li1+, two Nb5+, and one Mn+2.33+ atom to form distorted corner-sharing OLiMnNb2 tetrahedra. In the sixth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one Mn+2.33+, and one Fe3+ atom. In the seventh O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one Mn+2.33+, and one Fe3+ atom. In the eighth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, one Nb5+, one Mn+2.33+, and one Fe3+ atom. In the ninth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, two Mn+2.33+, and one Fe3+ atom. In the tenth O2- site, O2- is bonded in a 4-coordinate geometry to one Li1+, two Nb5+, and one Fe3+ atom. In the eleventh O2- site, O2- is bonded to one Li1+, one Nb5+, one Mn+2.33+, and one Fe3+ atom to form distorted OLiMnNbFe tetrahedra that share corners with three OLiMnNb2 tetrahedra, a cornercorner with one OLiMn2Nb trigonal pyramid, and an edgeedge with one OLiMnNbFe tetrahedra. In the twelfth O2- site, O2- is bonded to one Li1+, one Nb5+, one Mn+2.33+, and one Fe3+ atom to form distorted OLiMnNbFe tetrahedra that share corners with three OLiMnNb2 tetrahedra, a cornercorner with one OLiMn2Nb trigonal pyramid, and an edgeedge with one OLiMnNbFe tetrahedra. In the thirteenth O2- site, O2- is bonded in a rectangular see-saw-like geometry to one Li1+, two Nb5+, and one Mn+2.33+ atom. In the fourteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one Mn+2.33+, and one Fe3+ atom. In the fifteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, two Nb5+, and one Fe3+ atom. In the sixteenth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Li1+, one Nb5+, one Mn+2.33+, and one Fe3+ atom.