A Colorimetric and Ratiometric Fluorescent Chemosensor for Fluoride Based on Proton Transfer

被引：44

作者：

Jia, Chuandong ^{[1
,2
]}

Wu, Biao ^{[1
]}

Liang, Jianjun ^{[1
]}

Huang, Xiaojuan ^{[1
]}

Yang, Xiao-Juan ^{[1
]}

机构：

[1] Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

来源：

JOURNAL OF FLUORESCENCE | 2010年 / 20卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Fluoride; Chemosensor; Deprotonation; Reversible; Ratiometric fluorescence; ANION-BINDING; HYDROGEN; UREA; DEPROTONATION; ENCAPSULATION; COMPLEXATION; RECOGNITION; INHIBITION; THIOUREA;

D O I：

10.1007/s10895-009-0553-0

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

N-Phenyl-N'-(3-quinolinyl)urea (1) has been developed as a highly selective colorimetric and ratiometric fluorescent chemosensor for fluoride ion based on a proton transfer mechanism. Evidences for the mechanism were provided by UV-vis and fluorescence titration and especially H-1 and F-19 NMR experiments. The sensor gave the largest ratiometric fluorescent response reported so far (R-max/R-min = 2620) to fluoride. Taking H+ as the "recovering reagent", the sensor can be reversibly "used" and "recovered" for several cycles with only a slight decay of the response ability.

引用

页码：291 / 297

页数：7

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