Photo-heterolysis and-homolysis of substituted diphenylmethyl halides, acetates, and phenyl ethers in acetonitrile: characterization of diphenylmethyl cations and …

…, S Steenken, H Mayr, RA McClelland

文献索引：Bartl; Steenken; Mayr; McClelland Journal of the American Chemical Society, 1990 , vol. 112, # 19 p. 6918 - 6928

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被引用次数: 150

摘要

Abstract: Para-substituted diphenylmethyl halides, acetates, and ethers RPh (R'Ph) CH-X (R, R'= CF3 to OCH3), upon photolysis with-250-nm light in acetonitrile solutions, undergo homolysis and heterolysis of the CX bond to give the radicals, RPh (R'Ph) CH'(abbreviated as C), and the cations, RPh (R'Ph) CH+((2'). Whereas the quantum yields for homolysis (0.2- 0.4) are rather independent of the nature of the substituent on the benzene ring, those for ...