Fluorine nuclear magnetic resonance shielding in meta-substituted fluorobenzenes. The effect of solvent on the inductive order

RW Taft, E Price, IR Fox, IC Lewis…

Index: Taft,R.W. et al. Journal of the American Chemical Society, 1963 , vol. 85, p. 709 - 724

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Citation Number: 281

Abstract

The FIB nmr shielding parameters for twenty-one m-substituted fluorobenzenes relative to a fixed external standard and relative to fluorobenzene as an internal standard have been obtained at room temperature at high dilution in twenty widely varying pure solvents. Extensive measurements with twenty-four additional substituent groups in non-polar and in hydroxylic solvents, both pure and mixed, have also been made. In spite of a variation ...