作者:Lingyun Wang、Decheng Ye、Derong Cao
DOI:10.1016/j.saa.2012.01.017
日期:2012.5
A novel coumarin Schiff base compound (1) prepared from 7-diethylaminocoumarin-3-aldehyde and 3-amino-7-hydroxycoumarin was synthesized and evaluated as a chemoselective Ni2+ sensor. Addition of Ni2+ to CH3CN solution of L resulted in a rapid color change from yellow to red together with a large red shift from 465 to 516 nm. Moreover, other common alkali-, alkaline earth-, transition- and rare earth metal ions induced no or minimal spectral changes. Experimental results indicated that L could be used as a potential Ni2+ colorimetric and naked-eye chemosensor in CH3CN solution. (C) 2012 Elsevier B.V. All rights reserved.