E,E-1,4-二[2′,2″-(苯并噁唑基乙烯基)]苯及其衍生物的合成和光性能研究

Synthesis and Optical Properties of Some E, E-1 ,4-bis-[2' ,2"-(Benzoxazolylethenyl)]Benzene and Its Substituted Derivatives

合成了E,E-1,4-二[2′,2″-(苯并(口恶)唑基乙烯基)]苯及衍生物共14种,测定了它们的熔点、红外光谱、核磁共振氢谱、紫外吸收光谱和荧光发射光谱、荧光量子产率及激光性能。

E,E-1,4-bis[2' , 2'-(benzoxazolylethenyl)]benzene and thirteen of its substituted derivatives were synthesized. Their m. p. , ultraviolet-visible absorption spectra and fluorescence emission spectra, fluorescence quantum yields as well as laser properties were determined. Configurations of these compounds were identified by IR and 'H NMR. The relationship between optical property and structure was discussed.It was found that E,E-1, 4-bis[2' , 2'-(benzoxazolylethenyl)]benzeneand its substituted derivatives possess well photochemical stability and higher laser conversion efficiency than Coumarine-47.The synthesis of 2-methylbenzoxazole and substituted derivatives were also reported.