ORGANIC LUMINOPHORES OF THE PYRAZOLINE SERIES WITH TWO UNCONJUGATED FLUOROPHORES

Article abstract of DOI:10.1007/BF00513443

Condensation of 1-(p-formylphenyl)-3,5-diphenyl-2-pyrazoline with 4-acetyl-N-phenylnaphthalamide and a mixture of 3- and 4-acetyl-7H-benzimidazo<1,2-b>benzisoquinolin-7-ones and subsequent heating of the products with phenylhydrazine were used to synthesize luminophores with orange and orange-red luminescence that have high quantum yields in aromatic solvents.Intramolecular transfer of the electronic excitation energy is observed for these compounds in toluene.