Luminescence

A highly selective fluorescent sensor for mercury ion (II) based on azathia??crown ether possessing a dansyl moiety

H Dai, F Liu, Q Gao, T Fu, X Kou

Index: Dai, Huajun; Liu, Fei; Gao, Qianqian; Fu, Tianhua; Kou, Xingming Luminescence, 2011 , vol. 26, # 6 p. 523 - 530

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Citation Number: 22

Abstract

ABSTRACT An intramolecular charge transfer (ICT) fluorescent sensor 1 using a dansyl moiety as the fluorophore and an azathia-crown ether as the receptor was designed, synthesized and characterized. The ions-selective signaling behaviors of the sensor 1 were investigated in CH 3 CN-H 2 O (1: 1, v/v) by fluorescence spectroscopy. It exhibited remarkable fluorescence quenching upon addition of Hg 2+, which was attributed to the 1: ...