Absorption and Emission Spectroscopic Characterization of 10-Phenyl-Isoalloxazine Derivatives

DOI to cite this document:: 10.5283/epub.1845

Shirdel, Javid ; Penzkofer, Alfons ; Procházka, R. ; Daub, Joerg ; Hochmuth, Eduard ; Deutzmann, Rainer

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Date of publication of this fulltext: 05 Aug 2009 13:33

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Abstract

The flavoquinone dyes 10-phenyl-isoalloxazine-3-acetic acid ethyl ester (1) and 10-(4-bromo-phenyl)-3-methyl-isoalloxazine (2) in dichloromethane, acetonitrile, and methanol are characterized by absorption and emission spectroscopy. Absorption cross-section spectra, stimulated emission cross-section spectra, fluorescence quantum distributions, quantum yields, lifetimes, and degrees of ...