Colorimetric and ratiometric fluorescent chemosensor for fluoride ion based on perylene diimide derivatives

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• 作者：Zhi Jun Chen ; Li Min Wang ; ^{wanglimin@ecust.edu.cn} ; Gang Zou ; Liang Zhang ; Guan Jun Zhang ; Xiao Fei Cai ; Ming Shuang Teng
• 关键词：PDIs ; Naked-eye detection ; Fluoride ; Ratiometric ; Chemosensor ; Intermolecular proton transfer
• 刊名：Dyes and Pigments
• 出版年：2012
• 期刊代码：31_01437208
• 类别：ms
• 出版时间：September, 2012
• 卷：94
• 期：3
• 页码：410-415
• 文件大小：651 K

摘要

Based on a perylene diimide derivatives(PDIs) platform, AM-PDIs was rationally designed and synthesized as a new colorimetric 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聽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聽渭M.