含1,3,4-噻二唑希夫碱衍生物及其金属配合物的合成和荧光性能研究

以水杨酸、氨基硫脲为原料,POCl3作为溶剂、催化剂、环合剂,合成了2-氨基-5-(2-羟基苯基)-1,3,4-噻二唑.通过其与相应的芳香醛反应,合成了3种含杂环1,3,4-噻二唑的希夫碱及其金属配合物.采用傅里叶红外光谱(FT-IR)和核磁共振(1H-NMR)对目标产物及其中间体进行了表征,通过荧光光谱研究了其光学性能.结果表明:所用方法反应时间短、操作简单、产率高,这些化合物具有较强的荧光发射光谱,有望成为较好的有机光电材料.

Synthesis and Luminescence of Schiff Base Derivatives Containing 1,3,4-Thiadiazole and Their Metal Complexes

2-amino-5-(2-hydroxylphenyl)-1,3,4-thiadiazole was synthesized from salicylic acid and thiosemicarbazide with phosphorus oxychloride as solvent, cyclization reagent and catalyst. Then three schiff base compounds containing 1,3,4-thiadiazole and their metal complexes were formed by the reaction of 2-amino-5-(2-hydroxylphenyl)-1,3,4-thiadiazole and the corresponding aromatic aldehydes. These compounds were characterized by FT-IR and ¹H-NMR and the luminescence of the three schiff bases and their metal complexes were also studied. The results indicated that the synthesis was characterized by short reaction time, simple operation and high yield. The three schiff bases exhibited strong fluorescence emission spectrum and were expected to be of use as preferable organic photoelectric materials.