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首页> 外文期刊>The journal of physical chemistry, C. Nanomaterials and interfaces >Calcium Ion-Calixquinone Complexes Adsorbed on a Silver Electrode
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Calcium Ion-Calixquinone Complexes Adsorbed on a Silver Electrode

机译：钙离子-Calixquinone复合物吸附在银电极上

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摘要

The structures and redox-switching behavior of Ca~(2+)/calix(4]quinone complexes on a Ag surface were investigated by reflection-absorption infrared spectroscopy (RAIRS), Monte Carlo simulation, and voltam-metty. RAIRS and Monte Carlo simulation show that the carboxylate groups of calix(4]arene-triacid-monoquinone (CTAQ) and calix(4]arene-diacid-diquinone (CDAQ) are involved in not only binding with the Ca~(2+) ions but also spontaneous adsorption of their complexes onto the Ag surface. According to the RAIRS results, the Ca~(2+) ions in the complexes lie in vicinity to the quinone moieties. Monte Carlo simulation provides more detailed information about the probable conformations of the Ca~(2+)/calix(4]quinone complexes adsorbed on the Ag surface. Voltammetric behavior is consistent with the RAlRS and Monte Carlo simulation results and shows the effect of Ca~(2+) ions to the redox processes of the CTAQ- or CDAQ-modified Ag electrodes.
机译：通过反射吸收红外光谱（RAIRS），蒙特卡罗模拟和伏安法研究了Ca〜（2 +）/杯状（4]醌复合物在Ag表面的结构和氧化还原转换行为。模拟表明，杯（4）芳烃-三酸-单醌（CTAQ）和杯（4）芳烃-二酸-二醌（CDAQ）的羧基不仅与Ca〜（2+）离子结合，而且自发根据RAIRS结果，复合物中的Ca〜（2+）离子位于醌部分附近，蒙特卡罗模拟提供了有关Ca〜（ 2 +）/杯（4）醌络合物吸附在银表面，伏安行为与RAlRS和Monte Carlo模拟结果一致，并显示Ca〜（2+）离子对CTAQ-或CDAQ的氧化还原过程的影响改性的Ag电极。

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