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Primary processes in the photoreduction of 1-chloro- and 1,8-dichloro-anthraquinones in ethanol studied by laser spectroscopy

✍ Scribed by Kumao Hamanoue; Kazuo Yokoyama; Yōichi Kajiwara; Kazuo Nakajima; Toshihiro Nakayama; Hiroshi Teranishi


Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
409 KB
Volume
110
Category
Article
ISSN
0009-2614

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✦ Synopsis


The hydrogen-atom abstraction of the title compounds from ethanol was found IO originate from the It slave in spite of the Inked nn*--nn* or nn* chractcr of the lowest triplet state (Tt). No evidence for electron transfer from ethanol IO the Tt state of a-1131o~enoa~~tilraquinoncs WIS obtained.


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The absorption kinetics of photoreductio
✍ Kumao Hamanoue; Kazuo Yokoyama; Yöichi Kajiwara; Masaki Kimoto; Toshihiro Nakaya 📂 Article 📅 1985 🏛 Elsevier Science 🌐 English ⚖ 324 KB

The photoreduction of the title compounds by triethylamine in toluene and ethanol was found to originate via formation of an exciplex between the lowest triplet anthraquinones and triethylamine. This complex changed to a contact ion pair followed by proton transfer, generating anthrasemiquinone radi