均三嗪衍生物比色识别Cu^2+及荧光识别Zn^2+  

Colorimetric recognition of Cu^2+ and fluorescence recognition of Zn^2+ by s-triazine derivatives

作　　者：李丽妹 王梅阁 杨秋生[1,2] 段中余 LI Limei;WANG Meige;YANG Qiusheng;DUAN Zhongyu(School of Chemical Engineering,Hebei University of Technology,Tianjing 300130,China;Tianjin Key Laboratory of Chemical Process Safety,Tianjing 300130,China)

机构地区：[1]河北工业大学化工学院,天津300130 [2]天津市本质安全化工技术重点实验室,天津300130

出　　处：《化工进展》2020年第8期3287-3292,共6页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(51473045)。

摘　　要：以对氨基苯腈、邻叔丁基苯酚和3,5-二叔丁基水杨醛为原料合成了两种含有均三嗪对称结构的离子探针1和2,通过核磁共振氢谱、核磁共振碳谱、红外、质谱对合成产物进行表征,确认其结构。利用紫外吸收光谱和荧光光谱两种手段分别考察了探针1和探针2在N,N-二甲基甲酰胺(DMF)溶液中对金属离子(Cr^3+、Mn^2+、Fe^3+、Co^2+、Ni^2+、Cu^2+、Zn^2+、Cd^2+、Hg^2+)的识别性能,通过核磁共振氢谱对探针1与Zn^2+的识别机理进行研究。结果表明,两种探针热稳定性强,探针1溶液中加入Zn^2+会引起荧光强度的显著增强,抗干扰性强,是一种高选择性识别Zn^2+的荧光增强型探针;探针2中加入Cu^2+后溶液由无色变成黄色,紫外光谱长波长处出现新吸收峰,是一种可裸眼识别的、高效的紫外Cu^2+探针。Two ion probes 1 and 2 with s-triazine symmetric structure were synthesized with 4-aminobenzonitrile,2-tert-butylphenol and 3,5-di-tert-butylsalicylaldehude as raw materials and its structure was characterized by1 H NMR,13C HMR,IR and mass spectrometry.The recognition performance of probes 1 and 2 for metal ions(Cr^3+,Mn^2+,Fe^3+,Co^2+,Ni^2+,Cu^2+,Zn^2+,Cd^2+,Hg^2+) in the N,Ndimethylformamide(DMF) were investigated by UV-vis spectra and fluorescence spectra.Then,the mechanism of forming complexes with probe 1 and Zn^2+was discussed by1 H NMR.It was found that the fluorescence intensity of probe 1 had a significant increase after adding Zn^2+to the probe 1 solution.Probe1 was a fluorescently enhanced probe and had the selective recognition to Zn^2+.The color of solution of probe 2 in DMF was changed from colorless to yellow after adding Cu^2+,and a new absorption peak appeared at the long wavelength of UV-vis spectrum.Probe 2 was a highly efficient UV probe for Cu^2+that can be recognized by naked eye.

关 键 词：均三嗪 裸眼识别 紫外-可见光吸收光谱 荧光光谱 配合物 选择性 

分 类 号：O626[理学—有机化学]