Synthesis and Characterization of the μ<sub>6</sub>-F Compounds [NEt<sub>4</sub>][F(Cl<sub>2</sub>)<sub>3</sub>] and [NEt<sub>4</sub>][F(Br<sub>2</sub>)<sub>3</sub>]
The reaction of tetraethylammonium polychlorides or polybromides in propionitrile with substoichiometric amounts of diluted fluorine at low temperatures leads to the non-classical interhalogen compounds [NEt<sub>4</sub>]-[F-(X<sub>2</sub>)<sub>3</sub>] (X = Cl and Br). These compounds are the first examples of anions containing a central μ<sub>6</sub> fluoride anion, which is octahedrally surrounded by Br<sub>2</sub> or Cl<sub>2</sub> units, respectively. Single-crystal X-ray diffraction revealed that these compounds crystallize in the cubic system with every fluoride anion bridged by halogen units, resulting in a 3D network. Furthermore, single-crystal Raman and IR spectra were measured, and investigations using solid-state calculations were carried out.
Authors
- Jonas R. Schmid (ORCID: https://orcid.org/0000-0002-9521-9317)
- Patrick Pröhm (ORCID: https://orcid.org/0000-0002-3318-9941)
- Patrick Voßnacker (ORCID: https://orcid.org/0000-0002-6059-2293)
- Sebastian Riedel (ORCID: https://orcid.org/0000-0003-4552-5719)
- Carsten Müller (ORCID: https://orcid.org/0000-0003-4140-4127)
- Günther Thiele (ORCID: https://orcid.org/0000-0003-2935-9335)
Institutions
- Freie Universität Berlin (DE)
Publication Details
- Journal
- ACS Organic & Inorganic Au
- Published
- 2025-07-24
- DOI
- https://doi.org/10.1021/acsorginorgau.5c00064
- Primary Topic
- Inorganic Chemistry and Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Deutsche Forschungsgemeinschaft
- H2020 European Research Council