NaAl(SO <sub>4</sub> )F <sub>2</sub> : a single-layer two-dimensional perovskite
The crystal structure of the sodium aluminium difluorosulfate NaAl(SO<sub>4</sub>)F<sub>2</sub> has been determined from laboratory powder diffraction data. Its characterization allows for improving the monitoring of aluminium industrial production starting from cryolite. It is characterized by a perovskite single layer formed by the fluorine corner-sharing of [AlF<sub>4</sub>O<sub>2</sub>] octahedra with SO<sub>4</sub> groups, and sodium as the interlayer content. This could be the n = 1 member of a possible new family of 2D perovskite materials AM<sub>n</sub>(SO<sub>4</sub>)F<sub>3n-1</sub> (A<sup>+</sup> = Na, Li; M<sup>3+</sup> = Al, Fe, V, Cr), which remains to be confirmed.
Authors
- A. Le Bail (ORCID: https://orcid.org/0000-0002-6097-3635)
- Lorentz Petter Lossius
- Jone Finnestad
Institutions
- Centre National de la Recherche Scientifique (FR)
- Hydal Aluminium Profiler (Norway) (NO)
- Institut des Molécules et Matériaux du Mans (FR)
Publication Details
- Journal
- Acta Crystallographica Section C Structural Chemistry
- Published
- 2025-05-14
- DOI
- https://doi.org/10.1107/s2053229625004280
- Primary Topic
- Inorganic Fluorides and Related Compounds
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Norges Forskningsråd