Triplet reactivity of psoralens containing a benzo-fused furan ring: A laser flash photolysis study
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- 作者：Julio Eduardo Paiva Sena Maiaa ; Nanci Camara de Lucasb ; Dari Cesarin-Sobrinhoa ; Antonio Eduardo da Hora Machadoc ; José ; Carlos Netto-Ferreiraa ; d ; jcnetto@ufrrj.br" class="auth_mail" title="E-mail the corresponding author
- 关键词：Laser flash photolysis ; Benzo-fused furan ring psoralens ; Hydrogen abstraction ; Electron transfer ; Hammett plot
- 刊名：Journal of Photochemistry & Photobiology, A: Chemistry
- 出版年：2016
- 出版时间：15 July 2016
- 年：2016
- 卷：326
- 期：Complete
- 页码：21-29
- 全文大小：1399 K
文摘
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The triplet excited state reactivity of psoralens containing a benzo-fused furan ring was investigated.
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The triplet excited state of both psoralens was efficiently quenched by hydrogen donors.
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The triplet excited state of both psoralens was efficiently quenched by electron donors.
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Reaction constants from Hammett plots are consistent with the electrophilic character of the reactive carbonyl triplet states.