Fluorescent Imidazolium-Based Cyclophane for Detection of Guanosine-5′-triphosphate and I- in Aqueous Solution of Physiological pH

被引：64
作者：
Ahmed, Nisar [1 ]
Shirinfar, Bahareh [1 ]
Geronimo, Inacrist [1 ]
Kim, Kwang S. [1 ]
机构：
[1] Pohang Univ Sci & Technol, Dept Chem, Ctr Superfunct Mat, Pohang 790784, South Korea
来源：
ORGANIC LETTERS | 2011年 / 13卷 / 20期
关键词：
ANION RECOGNITION; SELECTIVE RECOGNITION; SENSOR; CHEMOSENSOR; RECEPTOR; LUMINESCENT; INCLUSION; RESONANCE; DESIGN; DRIVEN;
D O I：
10.1021/ol202183t
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A new water-soluble and fluorescent imidazollum-anthracene cyclophane (1) effectively recognizes the biologically Important GTP and I- over other anions in a 100% aqueous solution of physiological pH 7.4. Fluorescence and H-1 NMR spectra and ab initio calculations demonstrate that emission arises from the formation of an excimer state and quenching occurs upon GTP/I- binding through (C-H)(+)center dot center dot center dot A(-) hydrogen bond interactions.
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收藏
页码：5476 / 5479
页数：4
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