A Novel Chemosensor Based on Rhodamine Derivative for Colorimetric and Fluorometric Detection of Cu2+ in Aqueous Solution

被引：0
作者：
Yu Wang
Hai-qiang Wu
Jian-hua Sun
Xiao-ya Liu
Jing Luo
Ming-qing Chen
机构：
[1] Jiangnan University,School of Chemical and Material Engineering
来源：
Journal of Fluorescence | 2012年 / 22卷
关键词：
Rhodamine 6G; Chemosensor; Cu; Fluorescence;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new rhodamine-based reversible chemosensor (2) was synthesized, which exhibits high sensitivity and selectivity for Cu2+ but no significant response toward other competitive metal ions in aqueous solution. Upon the addition of Cu2+, the spirolactam ring of 2 was opened and the solution color changed from colorless to red. Strangely, an unexpected fluorescence quenching was observed, which is contrary to the fluorescence turn-on of the most rhodamine-based chemosensors. The likely novel sensing mechanism has been proposed.
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页码：799 / 805
页数：6
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