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


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