Ratiometric Fluorescent Sensor for Silver Ion and Its Resultant Complex for Iodide Anion in Aqueous Solution

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• 作者：Huanhuan Wang ; Lin Xue ; Hua Jiang
• 刊名：Organic Letters
• 出版年：2011
• 出版时间：August 5, 2011
• 年：2011
• 卷：13
• 期：15
• 页码：3844-3847
• 全文大小：757K
• 年卷期：v.13,no.15(August 5, 2011)
• ISSN：1523-7052

文摘

In aqueous solution, sensor DQAg can selectively detect Ag⁺ based on inhibition of the resonance, demonstrating a large hypsochromic shift of 84 nm and remarkable changes in the ratio (F_{481 nm}/F_{565 nm}) of the emission intensity (R/R₀ up to 26-fold). Furthermore, the resultant Ag鈥揇QAg also displays a ratiometric and highly selective response to iodide anion over other anions due to the liberation of DQAg from the complex by precipitating AgI.