Abstract
Photooxidation of single crystals of 2,6-di-tert-butyl-4-methylphenol and 2,6-di-tert-butylphenol, respectively, led to localized pair-wise trapping of triplet phenoxyl radical pairs. Electron ejection is not implicated in the primary photooxidation of phenols in single crystals, but in liquid solutions time-resolved CIDEP observations for the 2,4,6-tritert-butylphenol in hexaftuorobenzene suggest an initial formation of a phenol radical cation from the photoexcited triplet state.
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Depew, M.C., Emori, S. & Wan, J.K.S. Esr and cidep studies of the photooxidation of phenols in single crystals and in solutions. Res Chem Intermed 12, 275–284 (1989). https://doi.org/10.1163/156856789X00302
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DOI: https://doi.org/10.1163/156856789X00302