通过多步Sonogashira偶联反应成功合成分子结构中含萘环的不对称二乙炔衍生物:4-(4-(4-(6-(己氧基)-2-萘基)-1-(1,3-丁二炔基))-3-乙烯基-苯乙炔基)-N,N-二甲基苯胺.通过核磁共振和元素分析对其结构进行了表征,通过差式扫描量热分析(DSC)、偏光显微镜(POM)和阿贝折射仪研究了其液晶性和双折射特性;通过紫外-可见吸收光谱仪和荧光分光光度计测得其吸收-发射光谱.测量发现该化合物具有热致型向列相液晶特性和很高的双折射值(△n=0.47).化合物溶液荧光发射波长为470 nm,荧光量子产率高达97％.应用旋转涂膜的方法制作的双层器件ITO/PEDOT/liquid crystal compound/Mg∶ Ag(10∶1)/Ag(ITO:氧化铟锡,PEDOT:聚3,4-乙撑二氧噻吩),电致发光波长为503 nm,器件显示了较好的电致发光稳定性和二极管整流特性,启动电压较低(6.75 V),在14.75 V时达到最大亮度150 cd/m2.该化合物有望作为一种潜在的液晶显示材料和电致发光材料.
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