A retrievable and highly selective fluorescent probe for monitoring dihydrogen phosphate ions based on a naphthalimide framework

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• 作者：Zhijun Chen ; Limin Wang ; Gang Zou ; Xiaoming Cao ; Yue Wu ; Peijun Hu
• 关键词：Dihydrogen phosphate anions ; Fluorescence revival ; Naphthalimide derivatives ; Fluorescent probe ; High selectivity
• 刊名：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
• 出版年：2013
• 出版时间：October, 2013
• 年：2013
• 卷：114
• 期：Complete
• 页码：323-329
• 全文大小：1564 K

文摘

A novel selective fluorescent chemosensor based on naphthalimide derivatives (AN-SB) was synthesized and characterized. Once combined with Cu²⁺, compound AN-SB could give rise to a visible yellow to orange color change and fluorescence quenching, while other metal ions showed subtle disturbance. The complex (AN-SB-Cu²⁺) formed by Cu²⁺ and AN-SB displayed high specificity for . Among the various anions, only induced the revival of color and fluorescence of AN-SB, resulting in ¡°off-on¡± type sensing of anion. The signal transduction occured via reversible formation-separation of complex AN-SB-Cu²⁺, however, slight changes were observed in the presence of other anions.