Recognition of linear dicarboxylate anions by the host with two naphthv lurea groups  

作　　者：梅明华 吴世康 

机构地区：[1]Institute of Photographic Chemistry, Chinese Academy of Sciences, Beijing 100101, China

出　　处：《Progress in Natural Science:Materials International》2001年第9期19-22,共4页自然科学进展·国际材料（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.29733100) and 973 Project (G20000781).

摘　　要：The compound 1 with preorganized structure was synthesized, and its absorption and fluorescence spectra in the presence of dicarboxylate anion were studied. The results showed that the emission of compound 1 at 380 nm could be quenched via addition of dicarboxylate anion, and a structureless red-shift emission band at 500 nm appeared simultaneously. These phenomena could be caused by the formation of the complex of compound 1 and dicarboxylate anion. According to the results of fluorescence spectra and ’H-NMR, the binding constant of pimelate with compound 1 has the largest value, owing to the most suitable conformation of compound 1 for pimelate.The compound 1 with preorganized structure was synthesized, and its absorption and fluorescence spectra in the presence of dicarboxylate anion were studied. The results showed that the emission of compound 1 at 380 nm could be quenched via addition of dicarboxylate anion, and a structureless red-shift emission band at 500 nm appeared simultaneously. These phenomena could be caused by the formation of the complex of compound 1 and dicarboxylate anion. According to the results of fluorescence spectra and ’H-NMR, the binding constant of pimelate with compound 1 has the largest value, owing to the most suitable conformation of compound 1 for pimelate.

关 键 词：fluorescence spectrum anlon RECOGNITION UREA LINEAR dicarboxylate. 

分 类 号：O657.3[理学—分析化学]