功能染料4,4′-双(4-羧基偶氮苯)二苯并-18-冠-6的制备及其吸收光谱  

Preparation and Absorption Spectra of a Functional Dye 4,4'-Bis-(4-Carboxyl Azobenzene)-Dibenzo-18-Crown-6

作　　者：胡蕾[1] 聂丽[1] 严正权[1] 吕红[1] 

机构地区：[1]皖西学院基础实验中心,安徽省六安市云路桥西237012

出　　处：《光谱实验室》2012年第1期394-398,共5页Chinese Journal of Spectroscopy Laboratory

基　　金：安徽省高等学校优秀青年人才基金项目(No:2011SQRL148);皖西学院项目(Nos:WXZY0709 & 2009LW008)

摘　　要：以二苯并-18-冠-6和对氨基苯甲酸为原料,经重氮化、偶合等多步反应,制备了一种功能染料——4,4'-双(4-羧基偶氮苯)二苯并-18-冠-6.产率68.5%,通过IR、~1H NMR和元素分析等方法对其结构进行表征。研究了不同金属离子对目标化合物紫外一可见吸收光谱的影响,用密度泛函理论对其作用机理进行探讨。结果表明,目标化合物的吸收光谱性能良好,对稀土元素和金属汞离子具有不同作用机理的选择性识别作用。A functional dye,4,4＇-bis-（4-carboxyl azobenzene）-dibenzo-18-crown-6 was designed and prepared via diazotization and coupling reactionsin the yield of 68.5%,with dibenzo-18-crown-6 and p-amino benzoic acid as raw materials.Its structure was characterized by IR,~1H NMR and element analysis.The influences of different metal ions on its UV-Vis absorrtion spectra were studied, and the reaction mechanisms were confirmed by density functional theory.The results showed that the target dye had good absorption spectral properties and high selective-recognitions to rare earth elements and Hg^（2＋） with different reaction mechanisms.

关 键 词：4 4'-双(4-羧基苯基偶氮)二苯并-18-冠-6 金属离子 传感器 吸收光谱 

分 类 号：O657.61[理学—分析化学]