DOI: 10.17188/1301439
title: Materials Data on Li5Nb2Fe5O12 by Materials Project

description: Li5Nb2Fe5O12 is Caswellsilverite-derived structured and crystallizes in the triclinic P1 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 a cornercorner with one LiO6 octahedra, corners with two NbO6 octahedra, corners with three FeO6 octahedra, edges with two NbO6 octahedra, edges with four LiO6 octahedra, and edges with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 3–13°. There are a spread of Li–O bond distances ranging from 2.09–2.30 Å. In the second Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one LiO6 octahedra, corners with two NbO6 octahedra, corners with three FeO6 octahedra, edges with two NbO6 octahedra, edges with four LiO6 octahedra, and edges with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 2–11°. There are a spread of Li–O bond distances ranging from 2.03–2.30 Å. In the third Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one LiO6 octahedra, corners with two NbO6 octahedra, corners with three FeO6 octahedra, edges with two NbO6 octahedra, edges with four LiO6 octahedra, and edges with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 1–9°. There are a spread of Li–O bond distances ranging from 2.08–2.30 Å. In the fourth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share a cornercorner with one LiO6 octahedra, corners with two NbO6 octahedra, corners with three FeO6 octahedra, edges with two NbO6 octahedra, edges with four LiO6 octahedra, and edges with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 2–8°. There are a spread of Li–O bond distances ranging from 2.04–2.37 Å. In the fifth Li1+ site, Li1+ is bonded to six O2- atoms to form LiO6 octahedra that share corners with two FeO6 octahedra, corners with four LiO6 octahedra, edges with three equivalent NbO6 octahedra, edges with four LiO6 octahedra, and edges with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 3–10°. There are a spread of Li–O bond distances ranging from 2.12–2.19 Å. There are two inequivalent Nb2+ sites. In the first Nb2+ site, Nb2+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two FeO6 octahedra, corners with four LiO6 octahedra, edges with five FeO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 1–5°. There are a spread of Nb–O bond distances ranging from 2.02–2.08 Å. In the second Nb2+ site, Nb2+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two FeO6 octahedra, corners with four LiO6 octahedra, edges with four LiO6 octahedra, and edges with eight FeO6 octahedra. The corner-sharing octahedra tilt angles range from 2–7°. There are a spread of Nb–O bond distances ranging from 2.01–2.17 Å. There are five inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two FeO6 octahedra, corners with four LiO6 octahedra, edges with three equivalent NbO6 octahedra, edges with four LiO6 octahedra, and edges with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 3–10°. There are a spread of Fe–O bond distances ranging from 2.11–2.22 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one LiO6 octahedra, corners with two NbO6 octahedra, corners with three FeO6 octahedra, edges with two NbO6 octahedra, edges with three FeO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–8°. There are a spread of Fe–O bond distances ranging from 2.10–2.22 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share a cornercorner with one LiO6 octahedra, corners with two NbO6 octahedra, corners with three FeO6 octahedra, edges with two NbO6 octahedra, edges with three FeO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 2–10°. There are a spread of Fe–O bond distances ranging from 2.09–2.26 Å. In the fourth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two FeO6 octahedra, corners with four LiO6 octahedra, edges with three equivalent NbO6 octahedra, edges with four LiO6 octahedra, and edges with five FeO6 octahedra. The corner-sharing octahedra tilt angles range from 2–13°. There are a spread of Fe–O bond distances ranging from 2.06–2.26 Å. In the fifth Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two FeO6 octahedra, corners with four LiO6 octahedra, edges with two FeO6 octahedra, edges with three equivalent NbO6 octahedra, and edges with seven LiO6 octahedra. The corner-sharing octahedra tilt angles range from 3–11°. There are a spread of Fe–O bond distances ranging from 2.09–2.20 Å. There are twelve inequivalent O2- sites. In the first O2- site, O2- is bonded to three Li1+, one Nb2+, and two Fe3+ atoms to form a mixture of edge and corner-sharing OLi3NbFe2 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. In the second O2- site, O2- is bonded to three Li1+, one Nb2+, and two Fe3+ atoms to form a mixture of edge and corner-sharing OLi3NbFe2 octahedra. The corner-sharing octahedra tilt angles range from 2–9°. In the third O2- site, O2- is bonded to two Li1+, one Nb2+, and three Fe3+ atoms to form a mixture of edge and corner-sharing OLi2NbFe3 octahedra. The corner-sharing octahedra tilt angles range from 1–5°. In the fourth O2- site, O2- is bonded to two Li1+, one Nb2+, and three Fe3+ atoms to form a mixture of edge and corner-sharing OLi2NbFe3 octahedra. The corner-sharing octahedra tilt angles range from 1–6°. In the fifth O2- site, O2- is bonded to three Li1+, one Nb2+, and two Fe3+ atoms to form a mixture of edge and corner-sharing OLi3NbFe2 octahedra. The corner-sharing octahedra tilt angles range from 1–6°. In the sixth O2- site, O2- is bonded to three Li1+, one Nb2+, and two Fe3+ atoms to form a mixture of edge and corner-sharing OLi3NbFe2 octahedra. The corner-sharing octahedra tilt angles range from 1–10°. In the seventh O2- site, O2- is bonded to two Li1+, one Nb2+, and three Fe3+ atoms to form a mixture of edge and corner-sharing OLi2NbFe3 octahedra. The corner-sharing octahedra tilt angles range from 3–9°. In the eighth O2- site, O2- is bonded to two Li1+, one Nb2+, and three Fe3+ atoms to form a mixture of edge and corner-sharing OLi2NbFe3 octahedra. The corner-sharing octahedra tilt angles range from 1–12°. In the ninth O2- site, O2- is bonded to three Li1+, one Nb2+, and two Fe3+ atoms to form a mixture of edge and corner-sharing OLi3NbFe2 octahedra. The corner-sharing octahedra tilt angles range from 3–5°. In the tenth O2- site, O2- is bonded to three Li1+, one Nb2+, and two Fe3+ atoms to form a mixture of edge and corner-sharing OLi3NbFe2 octahedra. The corner-sharing octahedra tilt angles range from 2–5°. In the eleventh O2- site, O2- is bonded to two Li1+, one Nb2+, and three Fe3+ atoms to form a mixture of edge and corner-sharing OLi2NbFe3 octahedra. The corner-sharing octahedra tilt angles range from 3–10°. In the twelfth O2- site, O2- is bonded to two Li1+, one Nb2+, and three Fe3+ atoms to form a mixture of edge and corner-sharing OLi2NbFe3 octahedra. The corner-sharing octahedra tilt angles range from 3–8°.