6533b7d1fe1ef96bd125cb3b

RESEARCH PRODUCT

Oligo(phenylenevinylene)s with increased electron affinity: 1,3,4-oxadiazoles in the main chain

Erli SugionoHeiner Detert

subject

Mechanical EngineeringMetals and AlloysChromophoreConjugated systemCondensed Matter PhysicsPhotochemistryOligomerFluorescenceElectronic Optical and Magnetic MaterialsIsophthalic acidchemistry.chemical_compoundUltraviolet visible spectroscopychemistryElectron affinity (data page)Mechanics of MaterialsPolymer chemistryMaterials ChemistryOLED

description

Stilbenoid chromophores and 2,5-diaryl-1,3,4-oxadiazoles are compounds with wide technical importance. Their intense fluorescence is used in szintillators and optical whiteners and their semiconducting properties makes them valuable emissive or electron conducting layers in organic light emitting diodes (OLED). The synthesis and the electronic spectra of soluble oligo(phenylenevinylene)s with 1,3,4-oxadiazoles in the main chain are presented. The Huisgen reaction of tetrazole-terminated stilbenoid compounds with aromatic acyl chlorides yields model compounds, isophthalic acid dichlorides lead to soluble polymers with well-defined conjugated segments, as can be seen in the electronic spectra. Besides connection of the stilbenoid sections, the electron deficient heterocycles promise to increase the electron affinity of the chromophore.

https://doi.org/10.1016/s0379-6779(00)01327-8