| 铜离子催化DPKA关环反应及其潜在应用 |
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| 引用本文： | 吴大雨,黄薇,闫文波,段春迎,谢黎霞,孟庆金.铜离子催化DPKA关环反应及其潜在应用[J].无机化学学报,2007,23(7):1179-1184. |
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| 作者姓名： | 吴大雨 黄薇 闫文波 段春迎 谢黎霞 孟庆金 |
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| 作者单位： | 南京大学化学化工学院,配位化学研究所,配位化学国家重点实验室,南京,210093 |
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| 摘 要： | 铜离子催化的氧化关环有机反应，用于选择性荧光探测金属铜离子的存在。晶体结构和光谱分析表明,在DPKA的乙腈/水混合溶剂中，引入铜离子可以促使苯并三氮唑类荧光化合物(2)的形成，该反应可以使得溶液的荧光明显增强。而且在滴定溶液里，引入Cu2+螯合剂EDTA，并不能使得溶液的荧光减弱，表明荧光是由有机物2发射的。同时，其他金属离子的引入并不能产生荧光，而且干扰离子的存在也不能使得荧光光谱发生显著改变，表明DPKA可以高选择性的检测溶液中的铜离子。研究表明，荧光响应呈现2个线性关系，区间分别在0.64～3.2 mg·kg-1和3.84～7.04 mg·kg-1。
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| 关 键 词： | 二吡啶酮肼合物 离子识别 荧光 铜离子 |
| 文章编号： | 1001-4861（2007）07-1179-06 |
| 修稿时间： | 2007-03-202007-05-25 |
Cu Ⅱ-induced Ring-formation Reaction of Di-pyridylketone Azine and Its Potential Application |
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| WU Da-Yu,HUANG Wei,YAN Wen-Bo,DUAN Chun-Ying,XIE Li-Xia and MENG Qing-Jin.Cu Ⅱ-induced Ring-formation Reaction of Di-pyridylketone Azine and Its Potential Application[J].Chinese Journal of Inorganic Chemistry,2007,23(7):1179-1184. |
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| Authors: | WU Da-Yu HUANG Wei YAN Wen-Bo DUAN Chun-Ying XIE Li-Xia and MENG Qing-Jin |
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| Institution: | State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093,State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 and State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 |
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| Abstract: | A Cu-promoted ring-closed reaction of di-pyridylketone azine (DPKA) was developed in the design of a fluorescent chemodosimeter for potential selective Cu (Ⅱ)detection. Structure and spectroscopic investigations demonstrated the formation of a 3H-pyrazolo4,3-b]pyridine (2) and the "turn-on" response for Cu(Ⅱ) in aqueous acetonitrile media. The introduction of Cu2+ chelator, such as EDTA, into the titration solution will not weaken the fluorescence, indicating the fluorescence is emitted from the organic compound (2). Two independent linear correlations exist in the range of 0.64～3.2mg·kg-1 and 3.84～7.04mg·kg-1,respectively. |
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| Keywords: | di-pyridylketone azine(DPKA) ion sensing fluorescence copper ion |
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