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Formation of triplets of aromatic hydrocarbons on quenching of excited singlet states by nitroxyl radicals

✍ Scribed by V.A. Kuzmin; A.S. Tatikolov

Publisher: Elsevier Science
Year: 1977
Tongue: English
Weight: 237 KB
Volume: 51
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(77)85351-7

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✦ Synopsis

Quenching of aromatic excited singlet states (9,10-dimethyl anthracene, 9,10-diphenyl anthracene and perylene) by nitroxyl radical was studied by flash photolysis and fluorimetrically. It is established that the dominant quenching mechanism is enhanced intersystem crossing in the collision complex with the radical, but enhanced internal conversion also ccntributes to a significant extent (particularly in the case of 9.1~diphenyl anthracene and peryiene).

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