中文摘要：

以间（对）苯二胺和2-吡啶甲醛为原料,合成了两种含吡啶基的π共轭结构席夫碱化合物。借助元素分析、红外光谱和质谱等手段对目标化合物的结构进行了表征。通过紫外-可见吸收光谱以及荧光光谱研究了化合物在几种溶剂中的光学性能,结果表明直线型化合物2的紫外和荧光光谱和V型结构化合物1的紫外和荧光光谱相比较,发生了较大程度的红移。

英文摘要：

Using m-phenylenediamine（p-phenylenediamine） and pyridine-2-carboxaldehyde as raw materials, two Schiff base compounds with π-conjugated system have been obtained. The structures were characterized by elemental analysis, IR and MS. The optical properties in different solvents were studied by UV-Vis absorption and fluorescence spectroscopy. Compared with those of L1, the absorption and fluorescence spectra of L2 exhibit an obvious trend of red-shift.