利用Witting反应合成了一种含吡啶和吡唑基团的π共轭结构刚性有机分子6-苯基-4′-(4-［4-(1H-吡唑)乙烯］苯基)-2, 2′-联吡啶, 采用元素分析、红外光谱、核磁共振氢谱、质谱等方法对其进行了表征。通过理论计算研究了化合物的吸收光谱特点, 实验研究了化合物在几种不同溶剂中的紫外吸收光谱及荧光发射光谱。研究结果表明, 所合成的化合物具有优良的蓝色荧光性能, 作为发光材料具有潜在的应用价值。

A new π-conjugated organic compound containing imidazole and pyridine, namely, 6-phenyl-4-4-［4-(1H-(pyrazole) vinyl］ phenyl)-2,2′-bipyridine was successfully synthesized through Wittig reaction. It was characterized by elemental analysis, IR, 1H NMR and Ms. The absorption spectra of the compound at the level of B3LYP/-31G(d)//B3LYP/6-31G were obtained. The optical properties of the compound were investigated by ultraviolet-visible (UV) absorption spectra and single photon fluorescence spectra in different solvents. The results indicate that the target compound exhibits strong blue light-emitting, which makes it well suitable for fluorescence material.