A Highly Selective Colorimetric and Fluorescent Probe for Cu2+ and Hg2+ Ions Based on a Distyryl BODIPY with Two Bis(1,2,3-triazole)amino Receptors
Publication in refereed journal

香港中文大學研究人員

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摘要A new distyryl boron dipyrromethene (BODIPY) with two bis(1,2,3-triazole)amino substituents has been prepared by typical Knoevenagel condensation followed by click reaction. The compound selectively binds to Cu2+ and Hg2+ ions in CH3CN/H2O (1:1 v/v) to give remarkably blueshifted electronic absorption and fluorescence bands as a result of inhibition of the intramolecular charge-transfer process upon binding to these metal ions. The color changes can be easily seen by the naked eye. The binding stoichiometry between this probe and Cu2+ ions has been determined to be 1:2 by a Job plot of the fluorescence data with a binding constant of ((6.2 +/- 0.6)x109)?M-2. The corresponding value for Hg2+ ions is about sixfold smaller.
著者Shi WJ, Liu JY, Ng DKP
期刊名稱Chemistry - An Asian Journal
出版年份2012
月份1
日期2
卷號7
期次1
出版社Wiley: 12 months
頁次196 - 200
國際標準期刊號1861-4728
電子國際標準期刊號1861-471X
語言英式英語
關鍵詞boron dipyrromethene; copper; fluorescence; mercury; sensors
Web of Science 學科類別Chemistry; Chemistry, Multidisciplinary; CHEMISTRY, MULTIDISCIPLINARY

上次更新時間 2020-28-11 於 23:49