Citation: Mao Xiang Wang, Xiang Ming Meng, Man Zhou Zhu, Qing Xiang Guo. Novel fluorescent chemosensor for Ag⁺based on coumarin fluorophore[J]. Chinese Chemical Letters, ;2008, 19(8): 977-980. doi: 10.1016/j.cclet.2008.05.010 shu

Novel fluorescent chemosensor for Ag⁺based on coumarin fluorophore

Department of Chemistry, University of Science and Technology of China, Hefei 230026, China

Received Date: 19 March 2008

Fund Project: This research was supported by the NSFC (No.90713009)

A novel chemosensor 1 (CS1) bearing one coumarin and two carbodithioate groups was synthesized and its fluorescent sensing behavior toward metal ions was investigated.Ag⁺ addition to a CH3COCH₃/H₂O (3:7, v:v) solution of CS1 gave a significantly quenched fluorescence.Other ions including Pb²⁺, Zn²⁺, Cu²⁺, Ca²⁺, Cd²⁺, Co²⁺, Mg²⁺, Mn²⁺, Hg²⁺, Ag⁺, Ni²⁺ induced no or much smaller spectral changes.This constitutes an ON–OFF Ag+-selective fluorescent chemosensor.
- Ag⁺ chemosensor,
- Fluorescence,
- PET,
- Coumarin
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