Photochemical & Photobiological Sciences 2018-03-23

Photochromism and the fluorescence properties of bisbenzothienylethene and S,S,S′,S′-tetraoxide derivatives with dual conjugated fluorescent groups on their side chains

Katsuhiro Watanabe, Takashi Ubukata, Yasushi Yokoyama

Index: 10.1039/C8PP00050F

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Abstract

Two photochromic bisbenzothienylethenes with two fluorescent (4-((2,5-bis(dodecyloxy)-4-(phenylethynyl)phenyl)ethynyl)phenyl) units and their disulfone derivatives were synthesized, and their photochromic and fluorescence properties were examined. Bisbenzothienylethenes showed photochromism and turn-off type fluorescence by UV-light irradiation, while their disulfone derivatives showed turn-on type fluorescence and the one-way isomerization to the closed form.

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