Luminescence properties of compounds containing both 2,5-diaryloxazole and 5-oxazole units

Abstract

Several compounds of the oxazolone series are efficient organic luminophors and emit light in the solid state [i]. Work on the absorption and fluorescence spectra of functional derivatives of the simplest -2-phenyl-4-benzylidene-5-oxazolone -has established that the spectral properties of these compounds are controlled by two competing factors, interaction of the arylidene radical with the carbonyl group of the oxazolone ring and between the Ar, and Arc radicals, the first of which has ~he greatest effect on the luminescence properties [2]