Journal of Organic Chemistry p. 148 - 152 (1988)
Update date:2022-08-22
Topics:
Freeman, Peter K.
Ramnath, N.
The mechanism of photodechlorination of pentachlorobenzene (1) in acetonitrile has been examined.The quantum yield of reaction (Φr) has been found to vary with the concentration of 1.A charge-transfer intermediate formed from the triplet excited state of 1 is proposed to explain the observations. Φr increases with added NaBH4 and 1/Φr varies directly with the inverse of the concentration of the electron-transfer reagent.The regiochemistry deuterium isotope effects, tracer studies, and quenching analyses are consistent with an electron-transfer process.
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