Photochemistry of stable free radicals: the photolysis of perchlorotriphenylmethyl radicals

MA Fox, E Gaillard, CC Chen

文献索引：Fox, Marye Anne; Gaillard, Elizabeth; Chen, Chia-Chung Journal of the American Chemical Society, 1987 , vol. 109, # 23 p. 7088 - 7094

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被引用次数: 36

摘要

Abstract: The excitation of perchlorotriphenylmethyl radical (PTM) at 532 nm leads to an excited doublet,* PTM*(7= 7 ns). The lifetime of this state is insensitive to oxygen, electron acceptors, and hydrogen-donating solvents. Electron donors (triphenylamine, N, N- dimethylaniline, and thianthrene) quench 2PTM* at diffusion controlled rates. Cyclization to form perchloro-9-phenylfluorenyl radical (PPF) occurs with a quantum efficiency of 0.3 ...