| Literature DB >> 15917913 |
Jonathan C Collings1, Alexander C Parsons, Laurent Porrès, Andrew Beeby, Andrei S Batsanov, Judith A K Howard, Donocadh P Lydon, Paul J Low, Ian J S Fairlamb, Todd B Marder.
Abstract
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.Entities:
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Year: 2005 PMID: 15917913 DOI: 10.1039/b502781k
Source DB: PubMed Journal: Chem Commun (Camb) ISSN: 1359-7345 Impact factor: 6.222