MODEL COMPOUNDS FOR NOVEL HIGH ELECTRON-AFFINITY POLYMERS

The development of improved polymers for light emitting diodes (LED)s requires fluorescent materials with high electron affinities to act bo th as emitters and as charge transport materials. In this paper we rep ort the synthesis of novel distyrylpyrazines and distyrylpyrazine-N-ox ides as model compounds for novel high electron affinity polymers. The UV-VIS and PL emission spectra demonstrate that the emission of these materials can be tuned from blue to red by changing the substituents. Cyclic voltammetry reveals that these compounds possess high electron affinities.