Study on Anion Electrochemical Recognition Based on a Novel Ferrocenyl Compound with Multiple Binding Sites

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• 作者：Qiaohua Tan ; Li Wang ; Liang Ma ; Haojie Yu ; Jianhua Ding ; Qingquan Liu ; Anguo Xiao ; Guoqing Ren
• 刊名：Journal of Physical Chemistry B
• 出版年：2008
• 出版时间：September 4, 2008
• 年：2008
• 卷：112
• 期：35
• 页码：11171-11176
• 全文大小：247K
• 年卷期：v.112,no.35(September 4, 2008)
• ISSN：1520-5207

文摘

A novel ferrocenyl anion receptor N,N,N,N-(dimethyl, ethyl, ferrocenecarboxylic amidodimethylene) ammonium fluoborate 2 with multiple binding sites was synthesized. Its anion recognition behaviors were investigated by CV, ¹H NMR and UV−vis spectrum. It was found that the combination of two interactions enforced the anion binding ability and the binding selectivity of 2 to phosphate anion. The effects of scan rate on the CV curves of 2 with phosphate were also investigated. In different scan rate, the CV curves kept stable which indicated the strong binding between 2 and phosphate. According to relationships of peak potential, peak currents and scan rate of 2 binding with phosphate, the kinetic parameters of electrode process such as diffusion coefficient D_app, surface transfer coefficient αn_α, and standard rate constant k⁰ were calculated.