| 苯并噻唑基修饰的开链Cu2+比色探针的合成及性能 |
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| 引用本文： | 王梅阁,彭家祥,刘成鹏,郑美玉,王雅萱,段中余.苯并噻唑基修饰的开链Cu2+比色探针的合成及性能[J].化工进展,2019,38(4):1941-1946. |
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| 作者姓名： | 王梅阁 彭家祥 刘成鹏 郑美玉 王雅萱 段中余 |
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| 作者单位： | 河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130;河北工业大学化工学院,天津,300130 |
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| 基金项目： | 国家自然科学基金(51473045);河北工业大学大学生创新创业训练计划(201810080301) |
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| 摘 要： | 以N-苯基二乙醇胺和2-巯基苯并噻唑为原料通过亲核取代反应合成了一种新型的苯并噻唑基修饰的开链冠醚类化合物1，并用核磁共振氢谱, 核磁共振碳谱及元素分析方法对合成产物进行了表征。利用紫外光谱仪考察了化合物1与多种金属离子（Mn2+、Co2+、Cu2+、Zn2+、Ni2+ 、Fe3+、 Hg2+、Cr3+、Al3+）在乙腈溶液中的光谱变化，并探究了化合物1处理过的滤纸条在水溶液中对金属离子的识别效果，通过核磁共振氢谱讨论了化合物1与金属离子形成配合物的作用机理。实验发现，化合物1的乙腈溶液中添加Cu2+后溶液颜色变为棕色，明显区别于添加其他离子；在水溶液中，特制的滤纸条遇到Cu2+会呈现黄色，而遇其他离子均无颜色变化。结果表明，化合物1仅对Cu2+具有选择性，且能通过裸眼进行识别，是一种高效、简便的Cu2+探针。
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| 关 键 词： | 二价铜离子 识别 可见探针 分子合成 核磁共振 配合物 |
| 收稿时间： | 2018-06-20 |
Synthesis and properties of benzothiazolyl-modified open chain colormetric probe for Cu2+ |
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| Meige WANG,Jiaxiang PENG,Chengpeng LIU,Meiyu ZHENG,Yaxuan WANG,Zhongyu DUAN.Synthesis and properties of benzothiazolyl-modified open chain colormetric probe for Cu2+[J].Chemical Industry and Engineering Progress,2019,38(4):1941-1946. |
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| Authors: | Meige WANG Jiaxiang PENG Chengpeng LIU Meiyu ZHENG Yaxuan WANG Zhongyu DUAN |
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| Affiliation: | School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China |
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| Abstract: | A novel heteroatomic alkyl chain compound 1 with bis-benzothiazole groups was synthesized facilely by nucleophilic substitution reaction using N-phenyldiethanolamine and 2-mercapto benzothiazole as raw materials, and its structure was characterized by 1H NMR, 13C NMR and elemental analysis. The spectral changes of compound 1 with many metal cations (Mn2+、Co2+、Cu2+、Zn2+、Ni2+、Fe3+、 Hg2+、Cr3+、Al3+) had been investigated by the UV-vis spectrophotometry, and the recognition performance of filter papers treated by compound 1 with many metal cations in aqueous solution was explored, finally the mechanism of forming complexes with metal cations was discussed by 1H NMR. It was found that the color of solution of compound 1 in acetonitrile was changed to brown after adding Cu2+, which was obviously different from adding other cations; the special filter paper will become yellow when it encounters Cu2+ in aqueous solution, and no color change was observed in case of other cations. The results showed that compound 1 only exhibited the selective recognition to Cu2+ and it could be clearly detected by our naked eyes. In a word, compound 1 is a highly efficient and simple probe for Cu2+. |
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| Keywords: | copper (Ⅱ) ion recognition visible probe molecular synthesis NMR complexes |
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