Two sensors based on π-extended TTF: synthesis and high selectivity for copper(II)
作者:Yuwen Ma、Guoqiao Lai、Zhifang Li、Wenbin Tan、Yongjia Shen、Chengyun Wang
DOI:10.1016/j.tet.2015.09.059
日期:2015.11
Two novel donor-pi-acceptor chemosensors, exTTF-DPA and exTTF-ADPA, based on pi-extended tetrathiafulvalene (exTIT) and di(pyridine-2-ylmethyl)amine (DPA) were synthesized and used as optical and electrochemical chemosensors for copper(II). The results showed that they possess specific selectivity for copper(II) in the presence of other competing metal ions (Zn2+, Sn2+, Pb2+, Pd2+, Hg2+, Al2+, Fe3+, Ag+, Co2+, Ni2+) in acetonitrile. Upon the addition of Cu2+, the solution color changed from yellow to orange, the cyclic voltammograms changed dramatically and the fluorescence quenched completely. (C) 2015 Elsevier Ltd. All rights reserved.