Fluorescence excitation of isolated, jet-cooled 3-hydroxyflavone: the rate of excited state intramolecular proton transfer from homogeneous linewidths

URN to cite this document:: urn:nbn:de:bvb:355-epub-55388
DOI to cite this document:: 10.5283/epub.5538

Ernsting, Niko P. ; Dick, Bernhard

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Date of publication of this fulltext: 05 Aug 2009 13:50

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Abstract

The laser-induced fluorescence excitation of 3-hydroxyflavone, cooled by seeding in a supersonic expansion of He, was investigated in the range 28,000-28,500 cm-1. The vibronic origin of the S0-S1 (pp*) electronic transition of the unperturbed normal mol. form is at 28080.3 cm-1. The excitation spectrum is characterized by several progressions with vibrational spacing of 45 cm-1, and by severe ...