Synthesis Of Light Emitting Materials Of α, β-Diarylacrylonitriles And Their Light Emitting Property

This dissertation considered of three chapters. The first chapter reviewed the application and the synthesis ofα,β-unsaturated nitriles and the research development of micro molecular organic light emitting materials. The second chapter referred to the synthesis ofα,β-bisaryl acrylonitriles. The third chapter referred to the synthesis of bisα,β-bisaryl acrylonitriles.In chapter one, we reviewed the synthesis of unsaturated nitriles, a: made from cyanogens salts; b: made from the alkenes; c: made form the alkynes; d: made from ketenes; e: made from ionic liquids; f: generalized the application and the research development of micro organic light-emitting materials.In chapter two, we researched the synthesis ofα,β-biaryl acrylonitriles, and the first method: to synthesisα,β-biaryl acrylonitriles through self-coupling of aryl acetonitriles, it is an innovative reaction. In other method: applied aryl acetonitriles to condense with aryl aldehydes , it is easy to work with high yields.In chapter three, we researched the synthesis of bisα,β-bisaryl acrylonitriles, we applied aryl dialdehydes reacted with aryl acetonitriles, and aryl diacetonitriles reacted with aryl aldehydes, the products of bisα,β-biaryl acrylonitriles would be synthesized quickly, and with high yields.All products of synthesis were characterized by IR,¹H NMR,¹³C NMR,EA,MS spectra. The light emitting property ofα,β-bisaryl acrylonitriles and bisα,β-bisaryl acrylonitriles was determined by UV and PL spectra , And then we compared with the effect of different polarity solvent (CH₂Cl₂,THF) for light emitting property.