Ra. Jackson et M. Sharifi, STABILIZATION OF BENZYLIC RADICALS BY SUBSTITUENTS - AN EPR STUDY OF PARASUBSTITUTED BENZYL RADICALS, Perkin transactions. 2, (5), 1996, pp. 775-778
Accurate determinations have been made for the EPR coupling constants
of 15 para-substituted benzyl radicals. These data, along with literat
ure data for other systems have been used to reassess the stabilizing
effect of para-substituents on benzylic radicals, and to throw light o
n the possible destabilizing effects of para F and CF3 substituents.