Materials Data on La4Fe3NiO12 by Materials Project
La4Fe3NiO12 is Orthorhombic Perovskite-derived structured and crystallizes in the triclinic P-1 space group. The structure is three-dimensional. there are two inequivalent La3+ sites. In the first La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.41–2.86 Å. In the second La3+ site, La3+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.41–2.87 Å. There are three inequivalent Fe3+ sites. In the first Fe3+ site, Fe3+ is bonded to six O2- atoms to form corner-sharing FeO6 octahedra. The corner-sharing octahedra tilt angles range from 25–26°. There are four shorter (2.02 Å) and two longer (2.03 Å) Fe–O bond lengths. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent NiO6 octahedra and corners with four equivalent FeO6 octahedra. The corner-sharing octahedra tilt angles range from 24–25°. There are a spread of Fe–O bond distances ranging from 2.00–2.03 Å. In the third Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent FeO6 octahedra and corners with four equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 24–26°. There are four shorter (1.99 Å) and two longer (2.06 Å) Fe–O bond lengths. Ni3+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with six FeO6 octahedra. The corner-sharing octahedra tilt angles range from 24–25°. There are two shorter (2.05 Å) and four longer (2.06 Å) Ni–O bond lengths. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to two La3+ and two Fe3+ atoms. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two La3+, one Fe3+, and one Ni3+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three La3+, one Fe3+, and one Ni3+ atom. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Fe3+ atoms. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Fe3+ atoms. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+, one Fe3+, and one Ni3+ atom.