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Environment-sensitive fluorophore emitting in protic environments.

Seiichi Uchiyama·Kazuyuki Takehira·Toshitada Yoshihara·Seiji Tobita·Tomohiko Ohwada
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Abstract

The unusual fluorescence properties of 8-methoxy-4-methyl-2H-benzo[g]chromen-2-one (1) are described. The fluorophore 1 is almost nonfluorescent in aprotic solvent (e.g., fluorescence quantum yield Phi(f) < 0.0003 in n-hexane), whereas it strongly fluoresces at long wavelengths (>450 nm) in protic solvent (e.g., Phi(f) = 0.21 in methanol). The fluorophore 1 also shows good applicability in developing a new fluorogenic (fluorescent "off-on") sensor. [structure: see text]

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Chemical PhenomenaChemistry, PhysicalChromonesFluorescenceFluorescent DyesHydrogen-Ion ConcentrationMethanolProtonsSolventsJournal ArticleResearch Support, Non-U.S. Gov't

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Seiichi Uchiyama, Kazuyuki Takehira, Toshitada Yoshihara, Seiji Tobita, Tomohiko Ohwada. 2006-12-07. Environment-sensitive fluorophore emitting in protic environments.. https://doi.org/10.1021/ol062490r

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