Abstract
New fluorescence chemosensors (CS1 and CS2) based on flavonol derivatives were successfully synthesized and characterized. Complexation behaviour of sensors towards zinc and other tested metals have been studied using UV-vis and fluorescence spectrometric methods. These reveal selective detection towards Zn2+ ion, along with fluorometric response. Also, those serve as a highly selective chemodosimeter for Zn2+ at neutral pH with naked-eye detection and successfully examined the reversibility of chemosensor-Zn(II) complexation. (C) 2014 Elsevier B.V. All rights reserved.