| 烯醇-酮互变异构型亚胺衍生物对Co2+的高选择性识别 |
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| 引用本文： | 曹成,曹甜,闫盆吉,王清云,岳国仁,籍向东.烯醇-酮互变异构型亚胺衍生物对Co2+的高选择性识别[J].高等学校化学学报,2020,41(7):1544. |
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| 作者姓名： | 曹成 曹甜 闫盆吉 王清云 岳国仁 籍向东 |
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| 作者单位： | 1.河西学院甘肃省河西走廊特色资源利用重点实验室, 化学化工学院, 张掖 7340002.甘肃省凯源生物技术开发中心, 张掖 734000 |
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| 基金项目： | 国家自然科学基金(21761011);甘肃省科技计划项目(18JR3RG205);甘肃省高等学校科研项目(2018A-088) |
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| 摘 要： | 设计合成了新型烯醇-酮互变异构型亚胺衍生物R, 考察了受体R对18种阳离子的紫外光谱及裸眼识别性能. 结果表明, 该受体对Co2+, Fe2+和Ni2+表现出良好的紫外光谱识别能力, 且可实现对Co2+相对明显的裸眼单一识别. Job曲线表明, 受体R与Co2+形成了1:1型金属配合物, 且检出限可达4.14×10-7 mol/L. 制备了受体R裸眼比色识别试纸; 根据理论计算及核磁滴定实验结果阐述了Co2+离子识别过程中烯醇-酮互变异构机理.
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| 关 键 词： | 希夫碱受体 离子检测 Co2+化学传感器 裸眼识别 |
| 收稿时间： | 2020-02-19 |
High Selectivity of Enol-keto Tautomers Imine Derivative for the Recognition of Co2+† |
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| CAO Cheng,CAO Tian,YAN Penji,WANG Qingyun,YUE Guoren,JI Xiangdong.High Selectivity of Enol-keto Tautomers Imine Derivative for the Recognition of Co2+†[J].Chemical Research In Chinese Universities,2020,41(7):1544. |
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| Authors: | CAO Cheng CAO Tian YAN Penji WANG Qingyun YUE Guoren JI Xiangdong |
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| Institution: | 1. Key Laboratory of Hexi Corridor Resources Utilization of Gansu, College of Chemistry and Chemical Engineering, Zhangye 734000, China2. Kaiyuan Bio-Tech Development Center, Hexi University, Zhangye 734000, China |
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| Abstract: | A new enol-keto tautomers imine derivative R was designed and synthesized. The recognition property of the receptor R for 18 kinds of cations was studied by ultraviolet absorption spectroscopy(UV-Vis) analysis and naked-eye detection. The results showed that the receptor R had significant recognition ability for Co2+, Fe2+ and Ni2+ through UV-Vis analysis, which found single colorimetric recognition of Co2+ by color changes. The Job’s plot indicated that the formation of complex between receptor R and Co2+ was in 1:1 stoichiometric ratios, and the limit of lowest detection of receptor R for Co2+ was 4.14×10-7 mol/L. Meanwhile, naked recognition paper of receptor R was prepared. The enol-keto tautomerism of receptor R was illustrated during recognition process through theoretical calculation and nuclear magnetic resonance titration. |
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| Keywords: | Schiff base receptor Ion detection Chemosensor for Co2+ Naked-eye detection |
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