標題: | A highly selective turn-on fluorescent chemosensor for copper(II) ion |
作者: | Wu, Shu-Pao Wang, Tzu-Hao Liu, Shi-Rong 應用化學系 Department of Applied Chemistry |
關鍵字: | Cu(II);Fluorescent chemosensor;Pyrene;Diaminomaleonitrile |
公開日期: | 18-十二月-2010 |
摘要: | A new pyrene derivative (1) containing a diaminomaleonitrile moiety exhibits high selectivity for Cu(2+) detection. Significant fluorescence enhancement was observed with chemosensor 1 in the presence of Cu(2+). However, the metal ions Ag(+), Ca(2+), Cd(2+), Co(2+), Fe(2+), Fe(3+), Hg(2+), Mg(2+), Mn(2+), Ni(2+), Pb(2+), and Zn(2+) produced only minor changes in fluorescence values for the system. The apparent association constant (K(a)) of Cu(2+) binding in chemosensor 1 was found to be 5.55x10(3) M(-1). The maximum fluorescence enhancement caused by Cu(2+) binding in chemosensor 1 was observed over the pH range 5-7.5. (C) 2010 Elsevier Ltd. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.tet.2010.10.054 http://hdl.handle.net/11536/26214 |
ISSN: | 0040-4020 |
DOI: | 10.1016/j.tet.2010.10.054 |
期刊: | TETRAHEDRON |
Volume: | 66 |
Issue: | 51 |
起始頁: | 9655 |
結束頁: | 9658 |
顯示於類別: | 期刊論文 |