BINOL-Based Fluorescent Sensor for Recognition of Cu(II) and Sulfide Anion in Water
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- 作者：Ming-Qi Wang ; Kun Li ; Ji-Ting Hou ; Ming-Yu Wu ; Zeng Huang ; Xiao-Qi Yu
- 刊名：The Journal of Organic Chemistry
- 出版年：2012
- 出版时间：September 21, 2012
- 年：2012
- 卷：77
- 期：18
- 页码：8350-8354
- 全文大小：336K
- 年卷期：v.77,no.18(September 21, 2012)
- ISSN：1520-6904
文摘
A multifunctional fluorescent sensor based on a cyclen-appended BINOL derivative (R-1) was synthesized and characterized. It can display on鈥搊ff-type fluorescence change with high selectivity toward Cu(II) among 19 metal ions in 100% aqueous solution. Furthermore, the in situ generated R-1鈥揅u(II) ensemble could recover the quenched fluorescence upon the addition of sulfide anion resulting in a off鈥搊n-type sensing with a detection limit of micromolar range in the same medium. No interference was observed from other biothiols and anions, including GSH, l-Cys, DTT, and sulfates, making it a highly sensitive and selective sulfide probe.