水杨醛双Schiff碱仲胺荧光探针的合成及金属离子的选择性识别  

Synthesis and Selective Recognition of Metal Ions by Bis-Schiff Base Amine Fluorescent Derivative Containing Salicylaldehyde

作　　者：陈正武 杨佳庆 张静 黄喆 姚子珍 蔡丽华 Chen Zhengwu;Yang Jiaqing;Zhang Jing;Huang Zhe;Yao Zizhen;Cai Lihua(Environmental and Biological Engineering College,Wuhan Technology and Business University,Wuhan,Hubei 430065,China)

机构地区：[1]武汉工商学院环境与生物工程学院,湖北武汉430065

出　　处：《绿色科技》2020年第14期158-160,共3页Journal of Green Science and Technology

基　　金：湖北省教育厅科研计划基金资助项目(编号:B2016338);2019年湖北省大学生创新创业训练计划资助项目(编号:S201913242025S)。

摘　　要：以2,6-吡啶二甲酸、乙二胺、水杨醛等为原料,经缩合反应,设计合成了双Schiff碱仲胺配体(L),采用荧光光谱考察了该类受体对数种常见金属离子的响应能力。其中与K+、Pb 2+金属离子配位后体系荧光强度明显增强,表明主体分子(配体)对这两种离子有很强的识别性。通过对K+离子的荧光滴定实验,发现L与K+在1~5μmol/L有较好的线性关系,线性方程为:F-F 0=628.09572-7.1719 C,相关系数为R 2=0.99501。A fluorescent probe L was synthesized by 2,6-pyridine carboxylic acidity,lenediamine and salicylaldehyde.The structure was confirmed.The recognition properties of the probe for metal ions have been investigated by fluorescence spectrophotometry in DMSO solution.The results showed that the probe could effectively and quickly detect K+and Pb 2+in DMSO and its aqueous solution,indicating that the host molecule(ligand)has a strong recognition of these two ions.Through the fluorescence titration experiment of K+ions,it is found that L and K+have a good linear relationship between 1 and 5μmol/L.The linear equation is F-F 0=628.09572-7.1719 C,and the correlation coefficient is R 2=0.99501.

关 键 词：荧光光谱 离子识别 Schiff碱仲胺 水杨醛 钾离子 

分 类 号：O627.41[理学—有机化学]