Further Development of Weakly Coordinating Cations: Fluorinated Bis(triarylphosphoranylidene)iminium Salts

Further Development of Weakly Coordinating Cations: Fluorinated... So far unknown bis(triarylphosphoranylidene)iminium cations [PPN]+ with one fluorine atom in para ([PPN‐1F]+), two in meta ([PPN‐2F]+), or three in para and meta positions of the phenyl rings ([PPN‐3F]+) were obtained by a newly developed one‐pot reaction. These halogenated [PPN]+ cations were characterized by IR and Raman spectroscopy in comparison with quantum‐chemical calculations, ESI+ mass spectrometry, NMR spectroscopy, and single‐crystal X‐ray diffraction. To assess their quality as weakly coordinating cations and the associated ability to stabilize labile anions, the electrostatic potential and fluoride‐ion affinity were calculated and compared with those of the unsubstituted and so far unknown perfluorinated [PPN‐5F]+ cations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemistry - A European Journal Wiley

Further Development of Weakly Coordinating Cations: Fluorinated Bis(triarylphosphoranylidene)iminium Salts

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
0947-6539
eISSN
1521-3765
D.O.I.
10.1002/chem.201705992
Publisher site
See Article on Publisher Site

Abstract

So far unknown bis(triarylphosphoranylidene)iminium cations [PPN]+ with one fluorine atom in para ([PPN‐1F]+), two in meta ([PPN‐2F]+), or three in para and meta positions of the phenyl rings ([PPN‐3F]+) were obtained by a newly developed one‐pot reaction. These halogenated [PPN]+ cations were characterized by IR and Raman spectroscopy in comparison with quantum‐chemical calculations, ESI+ mass spectrometry, NMR spectroscopy, and single‐crystal X‐ray diffraction. To assess their quality as weakly coordinating cations and the associated ability to stabilize labile anions, the electrostatic potential and fluoride‐ion affinity were calculated and compared with those of the unsubstituted and so far unknown perfluorinated [PPN‐5F]+ cations.

Journal

Chemistry - A European JournalWiley

Published: Jan 12, 2018

Keywords: ; ; ; ;

References

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