文献类型：期刊文献

英文题名：A novel ratiometric sensor for the fast detection of palladium species with large red-shift and high resolution both in aqueous solution and solid state

作者：Cui, Lei[1,2];Zhu, Weiping[1];Xu, Yufang[1];Qian, Xuhong[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Chem Biol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]Shanghai Univ Sci & Technol, Coll Sci, Shanghai, Peoples R China

年份：2013

卷号：786

起止页码：139

外文期刊名：ANALYTICA CHIMICA ACTA

收录：;EI(收录号：20132616457445);WOS:【SCI-EXPANDED(收录号:WOS:000320852300020)】；

基金：This work is financially supported by the National Basic Research Program of China (973 Program, 2010CB126100), the National High Technology Research and Development Program of China (863 Program 2011AA10A207), National Natural Science Foundation of China (21202097) and the Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：Fluorescent probe; Palladium; Excited-state intramolecular proton transfer; Paper strip; Solid state fluorescence

摘要：A highly selective fluorescent probe (OHBT) was designed and synthesized by linking the ESIPT fluorophore N-(3-(benzo[d]thiazol-2-yl)-4-(hydroxyphenyl) benzamide) (HBTBC) to the palladium specificity response group, allyl group, for the detection of palladium species in aqueous solution. The allyl group can be hydrolyzed by Pd-0 species through the Pd-0-catalyzed Tsuji-Trost reaction and thus release the fluorophore HBTBC, which shows two emission bands. The maximum emission spectra originated from the enol and keto forms at 415 and 555 nm respectively and with no overlap, which implies the high resolution of the palladium detection. The palladium species can also be detected by paper strip because of the solid-state fluorescence of probe HOBT catalyzed by palladium. This method was successfully applied in the palladium related Suzuki-Miyaura coupling reaction and the detection limit is lower than 1 mu M. (C) 2013 Elsevier B.V. All rights reserved.