Small molecular chromogenic sensors for Hg2+:: A strong "push-pull" system exists after binding

被引：37

作者：

Fu, Yanyan ^{[1
]}

Li, Hongxiang

Hu, Wenping

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci BNLMS, Organ Solid Lab, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2007年 / 2007卷 / 15期

关键词：

chemosensors; mercury; molecular recognition; push-pull effects;

D O I：

10.1002/ejoc.200601086

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Two small molecular chromogenic sensors I and 2 for detection of Hg2+ are described. After coordination with Hg2+, a red shift of about 100 nm was observed in the UV/Vis spectra and the color of the solution changed from pale yellow to red which could easily be detected by the naked eye. The results indicate a strong push-pull system was formed after coordination of Hg2+. The H-1 NMR spectra and control experiments showed the binding sites of 1 and 2 to be the aniline groups rather than the azine bridge. Moreover, mercury test papers were made by adsorbing 1 onto filter paper, allowing heterogeneous sensing of Hg2+ in aqueous solution. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007).

引用

页码：2459 / 2463

页数：5

共 37 条

[1] Ecological effects, transport, and fate of mercury: a general review [J].