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Solvent dependence of triplet energy transfer reaction competing with hydrogen atom abstraction between triplet benzophenone and 1-naphthol studied by laser flash photolysis

✍ Scribed by Minoru Yamaji; Takuya Tanaka; Haruo Shizuka

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 420 KB
Volume: 202
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)85264-o

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✦ Synopsis

It is found that the triplet-triplet energy transfer (ET) reaction between triplet benzophenone ('BP*) and l-naphthol (ROH) is competitive with the hydrogen atom abstraction (HA) reaction. The rate constant of ET is enhanced with an increase of solvent polarity while that of HA is reduced. A possible explanation for these behaviors suggests that the electronic character of 3BP* affects the reactivity in ET and HA.

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