Materials Data on La3Al(FeO3)4 by Materials Project
La3Al(FeO3)4 crystallizes in the monoclinic Pm space group. The structure is three-dimensional. there are three 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 2.38–2.70 Å. In the second La3+ site, La3+ is bonded in a 4-coordinate geometry to eight O2- atoms. There are a spread of La–O bond distances ranging from 2.32–2.88 Å. In the third La3+ site, La3+ is bonded in a 9-coordinate geometry to nine O2- atoms. There are a spread of La–O bond distances ranging from 2.43–2.91 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 six FeO6 octahedra and corners with two equivalent AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 26–48°. There are a spread of Fe–O bond distances ranging from 1.95–2.47 Å. In the second Fe3+ site, Fe3+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with six FeO6 octahedra and corners with two equivalent AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 25–48°. There are a spread of Fe–O bond distances ranging from 1.99–2.12 Å. Al3+ is bonded to four O2- atoms to form distorted AlO4 tetrahedra that share corners with eight FeO6 octahedra. The corner-sharing octahedra tilt angles range from 63–73°. There are a spread of Al–O bond distances ranging from 1.85–1.91 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded to two La3+ and two Fe3+ atoms to form a mixture of distorted corner and edge-sharing OLa2Fe2 tetrahedra. In the second O2- site, O2- is bonded in a 2-coordinate geometry to two La3+, two Fe3+, and one Al3+ atom. In the third O2- site, O2- is bonded in a 5-coordinate geometry to three La3+ and two Fe3+ atoms. In the fourth O2- site, O2- is bonded to two La3+ and two Fe3+ atoms to form a mixture of distorted corner and edge-sharing OLa2Fe2 trigonal pyramids. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one La3+, two equivalent Fe3+, and one Al3+ atom. In the sixth O2- site, O2- is bonded in a 4-coordinate geometry to one La3+, two equivalent Fe3+, and one Al3+ atom. In the seventh O2- site, O2- is bonded to two La3+ and two equivalent Fe3+ atoms to form a mixture of distorted corner and edge-sharing OLa2Fe2 tetrahedra. In the eighth O2- site, O2- is bonded in a 3-coordinate geometry to three La3+ and two equivalent Fe3+ atoms.
- Research Organization:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Contributing Organization:
- MIT; UC Berkeley; Duke; U Louvain
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- OSTI ID:
- 1751014
- Report Number(s):
- mp-1223294
- Resource Relation:
- Related Information: https://materialsproject.org/citing
- Country of Publication:
- United States
- Language:
- English
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