文献类型：期刊文献

英文题名：A novel coumarin-based fluorescence enhancement and colorimetric probe for Cu2+ via selective hydrolysis reaction

作者：Tan, Wenbin[1,2];Leng, Taohua[3];Lai, Guoqiao[4];Li, Zhifang[4];Wang, Kai[1,2];Shen, Yongjia[1,2];Wang, Chengyun[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Shanghai Inst Qual Inspect & Tech Res, Natl Food Qual Supervis & Inspect Ctr Shanghai, Shanghai 200233, Peoples R China;[4]Hangzhou Normal Univ, Key Lab Organosilicon Chem & Mat Technol, Minist Educ, Hangzhou 310012, Zhejiang, Peoples R China

年份：2016

卷号：324

起止页码：81

外文期刊名：JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

收录：;EI(收录号：20235015204625);WOS:【SCI-EXPANDED(收录号:WOS:000375817100011)】；

基金：This work is sponsored by Natural Science Foundation of Shanghai (16ZR1408000), and the National Natural Science Foundation of China (Nos. 20872035, 21576087).

语种：英文

外文关键词：Coumarin derivatives; Copper ion; Fluorescence enhancement; Hydrolysis reaction

摘要：A new colorimetric fluorescent probe, 3-benzothiazolyl-coumarin-7-yl picolinate (P1), based on coumarin derivative has been designed and synthesized to detect Cu2+ in CH3CN-water (1:1,v/v) solution. The probe showed highly selective and sensitive fluorescence enhancement response towards Cu2+ via selective hydrolysis reaction of the picolinate moiety followed by generating a strongly fluorescent 3-benzothiazolyl-7-hydroxycoumarin (2) moiety, whereas other competing metal cations (Na+, K+, Mg2+, Ag+, Fe3+, Pb2+, Mn2+, Ca2+, Ni2+, Cr3+, Zn2+, Sn2+, Hg2+, Al3+, Pd2+, Pt2+, Co2+, Au3+) did not possess the property. Upon the addition of Cu2+, the color of P1 changed from colorless to yellow-green, and gave an emission at around 470 nm. Moreover, the detection limit toward Cu2+ was calculated to be as low as 23.9 nM. (C) 2016 Elsevier B.V. All rights reserved.