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Excited-state intramolecular proton transfer in 3-hydroxylflavone isolated in solid argon: fluoroescence and fluorescence-excitation spectra and tautomer fluorescence rise time

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Dick, Bernhard ; Ernsting, Niko P.
Date of publication of this fulltext: 05 Aug 2009 13:50


The fluorescence properties of 3-hydroxyflavone isolated in solid Ar at 15 K were investigated. Upon electronic excitation the mols. undergo rapid intramol. H+ transfer. No fluorescence from the excited state of the normal form of the mol. was detected. Perturbations due to H-bonding impurities which produce serious exptl. problems in hydrocarbon glasses are largely suppressed in Ar matrixes. The ...


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