Fused Fluorinated Bis-β-diketones and Luminescent-Spectral Properties of Their Complexes with Europium

Claisen condensation of diacetylated fused aromatic and heteroaromatic compounds (fluorene, dibenzofuran, dibenzothiophene, or carbazole) with polyfluorocarboxylic acids esters in the presence of bases has afforded the ligands containing two β-diketonate groups. Their complexation with Eu3+ ions has been studied by the luminescence spectral method.