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. 2022 Feb 14;61(8):e202116565.
doi: 10.1002/anie.202116565. Epub 2022 Jan 10.

Fluoro-nitrogen Cations

Ashwani Vij  1 , William W Wilson  1 , Ralf Haiges  1 , Kyle C Edwards  2 , David A Dixon  2 , Karl O Christe  1
Affiliations

Fluoro-nitrogen Cations

Ashwani Vij et al. Angew Chem Int Ed Engl. .

Abstract

The crystal structures of [NH3 F]+ [CF3 SO3 ]- , [NH2 F2 ]+ [SbF6 ]- , and [N2 F3 ]+ [Sb3 F16 ]- have been determined, representing the first structural characterizations of these simple fluoro-nitrogen cations. The influences of the hybridization of the central nitrogen atom and of the number of fluorine substituents on the N-F bond lengths are evaluated for the series N2 F+ , N2 F3 + , NF2 O+ , NH3 F+ , NH2 F2 + , and NF4 + . It is shown that the N-F bond length decreases from 1.40 Å to 1.26 Å with increasing fluorine substitution and increasing s-character of the nitrogen atom, and that unusual N-F bond lengths reported in the previous literature are caused by disorder problems.

Keywords: Fluoro-Nitrogen; Fluoroammonium; Fluorodiazonium; Fluoronitronium; Trifluoro-Diazenium.

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References

    1. None
    1. K. O. Christe, D. A. Dixon, J. Am. Chem. Soc. 1992, 114, 2978;
    1. K. O. Christe, U.S. Patent 4108965, 1978.
    1. K. O. Christe, U.S. Patent 4207124, 1980.
    1. None

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