文献类型：期刊文献

英文题名：Colorimetric and ratiometric fluorescent chemosensor for fluoride ion based on perylene diimide derivatives

作者：Chen, Zhi Jun;Wang, Li Min[1];Zou, Gang;Zhang, Liang;Zhang, Guan Jun;Cai, Xiao Fei;Teng, Ming Shuang

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Shanghai 200237, Peoples R China

年份：2012

卷号：94

期号：3

起止页码：410

外文期刊名：DYES AND PIGMENTS

收录：;EI(收录号：20121814983465);WOS:【SCI-EXPANDED(收录号:WOS:000304688900006)】；

基金：This research was financially supported by the National Nature Science Foundation of China (20672035) and Baihehua Group.

语种：英文

外文关键词：PDIs; Naked-eye detection; Fluoride; Ratiometric; Chemosensor; Intermolecular proton transfer

摘要：Based on a perylene diimide derivatives(PDIs) platform, AM-PDIs was rationally designed and synthesized as a new calorimetric and ratiometric fluorescent sensor for naked-eye detection of fluoride ion with high selectivity over other halide ions. Addition of fluoride ion to a dichloromethane(DCM) solution of AM-PDIs resulted in an obvious color change (from red to blackish green) because of a large red shift (151 nm) in absorption. The recognition mechanism was attributed to the intermolecular proton transfer between a hydrogen atom on the amide N position of sensor and the fluoride anion. The detection limit was calculated to be 0.14 mu M. (C) 2012 Elsevier Ltd. All rights reserved.