Synthesis and properties of novel electrophosphorescent polymers from quinoline- and pyridine-end-capped polyfluorenes with rhenium(I) chromophores

Novel electrophosphorescent polymers were prepared from quinoline- and pyridine-end-capped polyfluorenes reacted with 4,4′-dimethyl-2,2′- bipyridyl (tricarbonyl)rhenium(I) chloride. Fourier transform infrared and photoluminescence spectroscopy confirmed that the rhenium complex was successfully incorporated into the polymer backbones. The energy transfer could be reached by an efficient intramolecular process. The emission contributions of the polyfluorene and organic complex were found from the electroluminescence spectra.