Optical properties of donor-acceptor phenylene-ethynylene systems containing the 6-methylpyran-2-one group as an acceptor

JC Collings, AC Parsons, L Porres, A Beeby, AS Batsanov, JAK Howard, DP Lydon, PJ Low, IJS Fairlamb, TB Marder

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Donor - acceptor phenylene ethynylene systems containing the 6-methylpyran-2-one group, synthesized via classic or microwave-assisted Sonogashira cross-coupling, exhibit pronounced solvatochromism in fluorescence suggesting a highly polar excited state; 4-[4-(4-N,N-dihexylaminophenylethynyl) phenylethynyl]-6- methylpyran- 2- one has a fluorescence quantum yield > 0.9 in cyclohexane.

Original languageEnglish
Pages (from-to)2666-2668
Number of pages3
JournalChemical Communications
Issue number21
Publication statusPublished - 2005
Externally publishedYes

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