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Phototautomeric Equilibrium in the Lowest Excited Singlet State of 3-Hydroxyacridone

DOI to cite this document:
Wolfbeis, Otto S. ; Huber, Christian ; Schulman, Stephen G.
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Date of publication of this fulltext: 06 Jun 2011 12:59


The pH dependencies of the absorption and fluorescence emission of 3-hydroxyacridone (3-HA) were studied. Three species (the cation, the neutral molecule, and the anion) were identified in absorption. The same species, albeit at different pH ranges, were identified in fluorescence. Their decay times are highly different. In addition, a new species, having an unusually long wavelength emission ...


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