期刊
INORGANICA CHIMICA ACTA
卷 404, 期 -, 页码 88-96出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.ica.2013.04.015
关键词
Fluorophore ligands; Copper(II) complexes; Nitric oxide; Fluorescence sensors
Two Cu(II) complexes, 1 and 2, were synthesized with N-donor ligands L-1 and L-2 [L-1 = N-1,N-1-dimethylethane-1,2-diamine, L-2 = N-1,N-1-dimethyl-N-2-{(pyridin-2-yl)methyl}ethane-1,2-diamine], respectively, and were characterized. Complexes 1 and 2 upon reaction with NO, found to show reduction of Cu(II) to Cu(I) in various solvents. Ligands L-3, L-4 and L-5 are the dansyl derivatives of L-1, 2-(pyridin-2-yl)ethanamine and L-2, respectively. Three Cu(II) complexes, 3, 4 and 5 were synthesized with ligands L-3, L-4 and L-5 respectively. The fluorescence intensity of these ligands were found to be quenched significantly on complexation due to the paramagnetism of the Cu(II) center. However, when exposed to NO in methanol or aqueous medium, the fluorescence intensity of the fluorophores has been found to be restored because of reduction of paramagnetic Cu(II) to diamagnetic Cu(I). (C) 2013 Elsevier B. V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据