NMR, Absorption and Fluorescence Parameters of Azlactones

Abstract

Abstract Absorption and fluorescence wavelengths for a series of a lactones have been measured from acetonitrile solutions that had no pre-light exposure. Fluorescence quantum yields, Qp are found to be in general less than 0.01, excluding the the derivatives with naphthyl and p-dimethylaminophenyl substituents. Previously reported Q F values did not not fit to our results.