A Fluorescent Chemosensor for Al3+ Based on CO Isomerization Derivated from Curcumin

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• 作者：Zhengyi Li ; Jinbei Yan ; Yue Yin ; Zhihui Zhang ; Zhiming Wang ; Defeng Xu and Xiaoqiang Sun
• 刊名：Chinese Journal of Chemistry
• 出版年：2016
• 出版时间：July, 2016
• 年：2016
• 卷：34
• 期：7
• 页码：657-661
• 全文大小：1054K
• ISSN：1614-7065

文摘

A simple and nontoxic fluorescent chemosensor of di-O-methyl curcumin has been prepared from curcumin. The sensor exhibited selective and sensitive fluorescent responses toward Al³⁺ over a wide range of metal ions, such as Mn²⁺, Ce³⁺, Pt²⁺, Sn⁴⁺, Hg⁺, Sb³⁺, K⁺, Ca²⁺, Mg²⁺, Ba²⁺, Cu²⁺, Ni²⁺, Na⁺, NH₄⁺, Ag⁺, Pb²⁺, Zn²⁺, Fe²⁺, Fe³⁺, Hg²⁺ and Cr³⁺ in ethanol/water. The free ligand showed quite weak fluorescence emission due to the isomerization of CO double bond in the excited state, however, after addition of Al³⁺, fluorescence emission results in a prominent fluorescence enhancement.