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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

E.S.R. of nitroxide radicals. II. Photosensitization of indoles, phenols, and thiols by a diphenylpyrazoline

IH Leaver and GC Ramsay

Australian Journal of Chemistry 22(9) 1899 - 1904
Published: 1969

Abstract

Indoles, phenols, and thiols have been shown to undergo photosensitization by a diphenylpyrazoline in non-polar solvents. The intermediate radicals produced have been trapped using a nitrosoalkane scavenger, and the resulting nitroxide radicals examined in situ by e.s.r. Fluorescence studies of these systems have shown that indoles and phenols strongly quench the singlet excited state of the diphenyl- pyrazoline, whereas thiols have no effect.

https://doi.org/10.1071/CH9691899

© CSIRO 1969

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