Nuclear magnetic resonance study of fluorine exchange in the system
p>Intermolecular fluorine exchange in the system has been studied by 31 P nmr spectroscopy. The anion was prepared insitu from PhPF 4 and KF in 18-crown-6, or from PhPF 4 and . Exchange was found to be first-order in PhPF 4 , first-order in , and slowed down by donor solvents such as acetonitrile...
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| Veröffentlicht in: | Canadian journal of chemistry 1984-08, Vol.62 (8), p.1563-1564 |
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| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | p>Intermolecular fluorine exchange in the
system has been studied by
31
P nmr spectroscopy. The anion
was prepared insitu from PhPF
4
and KF in 18-crown-6, or from PhPF
4
and
. Exchange was found to be first-order in PhPF
4
, first-order in
, and slowed down by donor solvents such as acetonitrile, in support of a mechanism involving a fluorine-bridged intermediate. Experimental difficulties are probably due to HF impurities. |
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| ISSN: | 0008-4042 1480-3291 |
| DOI: | 10.1139/v84-268 |