Materials Data on La4Fe(NiO4)3 by Materials Project
La4Fe(NiO4)3 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 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.42–2.79 Å. In the second La3+ site, La3+ is bonded in a 3-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.41–2.80 Å. Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six equivalent NiO6 octahedra. The corner-sharing octahedral tilt angles are 20°. There is four shorter (1.96 Å) and two longer (1.97 Å) Fe–O bond length. There are two inequivalent Ni3+ sites. In the first Ni3+ site, Ni3+ is bonded to six O2- atoms to form NiO6 octahedra that share corners with three equivalent FeO6 octahedra and corners with three equivalent NiO6 octahedra. The corner-sharing octahedra tilt angles range from 19–20°. There are a spread of Ni–O bond distances ranging from 1.98–2.01 Å. In the second Ni3+ site, Ni3+ is bonded to six O2- atoms to form corner-sharing NiO6 octahedra. The corner-sharing octahedra tilt angles range from 19–20°. There are a spread of Ni–O bond distances ranging from 1.96–1.98 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Ni3+ atoms. In the second O2- site, O2- is bonded in a 5-coordinate geometry to three La3+, one Fe3+, and one Ni3+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent La3+, one Fe3+, and one Ni3+ atom. In the fourth O2- site, O2- is bonded in a 5-coordinate geometry to three equivalent La3+ and two Ni3+ atoms. In the fifth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+, one Fe3+, and one Ni3+ atom. In the sixth O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Ni3+ atoms.