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>].
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ABSTRACT: 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 [NEt4]-[F-(X2)3] (X = Cl and Br). These compounds are the first examples of anions containing a central μ6 fluoride anion, which is octahedrally surrounded by Br2 or Cl2 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.
SUBMITTER: Schmid JR
PROVIDER: S-EPMC12492038 | biostudies-literature | 2025 Oct
REPOSITORIES: biostudies-literature
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