Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
 
Solid-State Fluorescence Behavior Induced by Photochemical Ring-Opening Reaction of 1,2-Bis(3-methyl-5-phenyl-2-thienyl)perfluorocyclopentene
Tatsumoto NakahamaDaichi KitagawaHikaru SotomeSyoji ItoHiroshi MiyasakaSeiya Kobatake
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2018 Volume 91 Issue 2 Pages 153-157

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Abstract

Crystals consisting of the closed-ring form of 1,2-bis(3-methyl-5-phenyl-2-thienyl)perfluorocyclopentene underwent a photochemical ring-opening reaction accompanying crystal fragmentation upon irradiation with visible light. The open-ring form crystal produced by the ring-opening reaction exhibited green fluorescence, whereas open-ring form crystals produced by recrystallization exhibit orange or yellow fluorescence depending on the polymorphic forms. The fluorescence quantum yield of the photogenerated open-ring form crystal was larger than that in n-hexane. The open-ring form exhibits different fluorescence colors depending on the intermolecular interaction in different states.

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© 2018 The Chemical Society of Japan
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