Journal of the American Chemical Society

Substituent effects on benzyl radical ESR hyperfine coupling constants. The. sigma.. alpha.. cntdot. scale based upon spin delocalization

JM Dust, DR Arnold

文献索引：Dust, Julian M.; Arnold, Donald R. Journal of the American Chemical Society, 1983 , vol. 105, # 5 p. 1221 - 1227

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被引用次数: 240

摘要

Abstract: The electron spin resonance spectra of 21 para-and meta-substituted benzyl radicals have been analyzed. A substituent constant, am-, has been defined from the benzylic a-hydrogen hyperfine coupling constant. The ua-constant reflects the component of energy that may be attributed to spin delocalization in a substituted benzyl radical in comparison to the unsubstituted radical. For the derivatives studied, para substitution is ...