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Received June 03, 1993,Revised , Accepted , Available online

Volume 5,1993,Pages 464-469

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Free radical intermediates generated in photocatalytic oxidation of some organic compound containing nitrogen atoms such as butylamine,piperidine,pyridine and so on were detected by spin trapping technique.The ESR spectra of N-centered radical adduct and C-centered radical adduct were observed.Experiment results reveal that these radicals are participants in the initial steps of photodegradation of these compounds. A mechanism which is consistent with the observation of these radicals species is elucidated.

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