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Excited-state intramolecular proton transfer in 3-hydroxyflavone: Comparison of time- and frequency-domain spectroscopy

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Muehlpfordt, A. ; Bultmann, T. ; Ernsting, N. P. ; Dick, Bernhard
Date of publication of this fulltext: 05 Aug 2009 13:50


Spectral evolution of transient absorption and gain for 3-hydroxyflavone (3-HF) in dry methylcyclohexane and fluorescence excitation spectrum of deuterated compd. isolated in a supersonic jet are reported. A comparison suggests that jet spectroscopy interrogates a metastable isomer of 3-HF in the electronic ground state. Semiempirical calcns. support this hypothesis.

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