Australian Journal of Chemistry

Substituent effects by 19F nuclear magnetic resonance: Polar and π-electron effects

W Adcock, BD Gupta, T Khor

Index: Adcock,W. et al. Australian Journal of Chemistry, 1976 , vol. 29, p. 2571 - 2581

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Abstract

Abstract A number of model substituted bicyclic aryl fluorides, including three new fluorobenzocycloalkenes, have been synthesized and their fluorine-19 spectra measured. An analysis of the data leads to the important conclusion that electrostatic-field effects play an important role in determining aryl 19 F chemical shifts. Further the relative π-electron distributions of several benzocycloalkenes are indicated.