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Radical pairs during photolysis of an iminoquinone in single crystals of 2,6-di-tert-butyl-4-methylphenol

✍ Scribed by Georgii G. Lazarev; Francisco Lara; Federico Garcia; Anton Rieker

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 303 KB
Volume: 199
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)80044-c

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✦ Synopsis

The formation of radical pairs with a dipole-dipole splitting constant D= 12.2 t 0.2 mT upon photolysis of single crystals of 2,6-di-tert-butyl-4-methylphenol doped with IO-' M 2,6-di-tert-butyl-1-imino-pquinone was studied by EPR spectroscopy in the temperature range between 77 and 140 K. The mechanism of the formation of the radical pairs is discussed in terms of a hydrogenatom phototransfer from the phenol to the iminoquinone.

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