文献类型：期刊文献

英文题名：Chemodosimeters for mercury(II) and methylmercury(I) based on 2,1,3-benzothiadiazole

作者：Zou, Qi;Tian, He[1]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2010

卷号：149

期号：1

起止页码：20

外文期刊名：SENSORS AND ACTUATORS B-CHEMICAL

收录：;EI(收录号：20103313148963);WOS:【SCI-EXPANDED(收录号:WOS:000280916700003)】；

基金：This work was supported by NSFC/China, National Basic Research 973 Program (2006CB806200) and Scientific Committee of Shanghai.

语种：英文

外文关键词：Chemodosimerer; 2,1,3-Benzothiadiazole; Mercury(II); Methylmercury(I); Fluorescence probe

摘要：Two novel 2,1,3-benzothiadiazole-based chemodosimeters (1a and 1b) were designed and synthesized, and their fluorescent behaviors toward various metal ions were investigated. Chemodosimeter 1a shows excellent optical properties and exclusively distinguishes Hg2+ and CH3Hg+ from other metal ions in aqueous solutions. Though the response of chemodosimeter 1b to Hg2+ and CH3Hg+ is slower than 1a, fortunately, chemodosimeter 1b becomes a promising fluorescent sensor for Hg2+ and CH3Hg+ with high selectivity. Evidences for the desulfurization mechanism were provided by UV-vis and fluorescence titration spectra and especially H-1 NMR and HRMS experiments. (C) 2010 Elsevier B.V. All rights reserved.