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Photoprocesses in 2-Benzylidene-5-(Pyridin-3-ylmethylene)cyclopentanone and Its Derivatives in Acetonitrileстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 июля 2020 г.
- Авторы: Gutrov V.N., Zakharova G.V., Nuriev V.N., Vatsadze S.Z., Gromov S.P., Chibisov A.K.
- Журнал: High Energy Chemistry
- Том: 54
- Номер: 3
- Год издания: 2020
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 189
- Последняя страница: 193
- DOI: 10.1134/S0018143920030066
- Аннотация: Spectral, luminescent, and time-resolved properties of 2-bezylidene-5-(pyridin-3-ylmethylene)cyclopentanone and its derivatives with electron-donating substituents (diethylamino, methoxy, methylthio, and dimethoxy) on the benzene cycle have been studied in acetonitrile at room temperature. The presence of substituents causes a long-wavelength shift of the absorption band maximum by 26–114 nm in comparison with the unsubstituted dienone and a long-wavelength shift of the fluorescence maximum by 43–125 nm in comparison with the methoxy derivative. Under laser irradiation of oxygen-free dienone solutions, intersystem crossing to the triplet state occurs with a half-life of 0.7–1.5 μs. A stable photoproduct is formed for the methoxy, methylthio, and dimethoxy derivatives of dienone.
- Добавил в систему: Громов Сергей Пантелеймонович