Substituent effects. XII. Substituent effects by fluorine-19 NMR

W Adcock, MJS Dewar, R Golden…

Index: Adcock,W. et al. Journal of the American Chemical Society, 1975 , vol. 97, # 8 p. 2198 - 2205

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Citation Number: 29

Abstract

Abstract: FMMF calculations for I9F SCS in the 10-substituted 9-fluoroanthracenes and 4- substituted 3, 5-dimethylfluorobenzenes are reported. The analysis strongly supports the idea that polar effects on I9F chemical shifts are enhanced when the fluorine atom is attached to a carbon atom which is part of a R system. Further, a comparison of FMMF calculations for increasingly rigid para-substituted aryl fluorides suggests that u skeletal ...