亚胺型比色探针的制备及阴离子识别性能研究  

Preparation and anion recognition properties of imine derivatives colorimetric probe

作　　者：曹成 刘彩云 籍向东 张书芳 李守博 CAO Cheng;LIU Caiyun;JI Xiangdong;ZHANG Shufang;LI Shoubo(College of Chemistry and Chemical Engineering,Key Laboratory of Hexi Corridor Resources Utilization of Gansu,Hexi University,Zhangye 734000;Kaiyuan Bio-Tech Development Center,Hexi University,Zhangye 734000)

机构地区：[1]河西学院化学化工学院甘肃省河西走廊特色资源利用重点实验室,张掖734000 [2]甘肃省凯源生物技术开发中心,河西学院,张掖734000

出　　处：《分析试验室》2021年第2期150-155,共6页Chinese Journal of Analysis Laboratory

基　　金：国家自然科学基金(21761011);甘肃省科技计划资助项目(18JR3RG205);甘肃省高等学校科研资助项目(2014A-107,2018A-088)资助。

摘　　要：合成了两种亚胺型阴离子识别受体:2-[(2-羟基-5-硝基亚苄基)氨基]-4-硝基苯酚(R1)和2-[(蒽-9-亚甲基)氨基]-4-硝基苯酚(R2),其结构经核磁氢谱和红外表征。在紫外光谱实验中,受体R1和R2分别在乙腈和DM SO溶液中可以高选择性识别F^(-),AcO^(-)和H_(2)PO_(4)^(-),同时观察到明显的颜色改变。实验结果表明,受体R1和R2分别与阴离子形成的络合常数均在1.703×10^(4)L/mol之上,并且分别与F-形成1∶1型氢键络合物。通过^(1)H NMR滴定实验及理论计算阐述了阴离子识别过程机理的可行性。Two imine derivatives 2-((2-hydroxy-5-nitrobenzylidene)amino)-4-nitrophenol(R1)and2-((anthracen-9-ylmethylene)amino)-4-nitrophenol(R2)have been synthesized and characterized through ^(1)H NMR and FT-IR.In UV-Vis analysis experiments,the receptor R1 and R2 exhibited obvious spectral and color changes in response to F^(-),AcO^(-)and H_(2)PO_(4)^(-)in CH_(3)CN and DMSO respectively.According to the BenesiHidebrand equation and Job curve,the complex constants of the receptors R1 and R2 with anions were both higher than 1.703×10^(4) L/mol,and a 1∶1 hydrogen bond complex with F^(-)respectively.Finally,the mechanism of anion recognition process was explained through ^(1)H NMR titration and theoretical calculation.

关 键 词：阴离子识别 亚胺 检测试纸 裸眼识别 

分 类 号：O657.3[理学—分析化学]