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首页> 外文期刊>Electroanalysis >Ion transfer of reduced Keggin-type heteropolymolybdate anions at the nitrobenzene/water interface and its relevance to their antitumoral activities
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Ion transfer of reduced Keggin-type heteropolymolybdate anions at the nitrobenzene/water interface and its relevance to their antitumoral activities

机译:还原的Keggin型杂多钼酸根阴离子在硝基苯/水界面处的离子转移及其与其抗肿瘤活性的关系

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The transfer of two-electron reduced Keggin anions (alpha- and beta-[(PMo2Mo10O40)-Mo-V-O-VI](5-) and alpha-[(SiMo2Mo10O40)-Mo-V-O-VI](6-)) across the nitrobenzene/water interface was studied by cyclic voltammetry. Based on measurements of the ion-transfer potential at various pHs, ionic distribution diagrams were prepared. It was found that the polyanion transfer was usually accompanied by the proton transfer. To confirm the validity of the distribution diagrams, the theoretical simulation of normal-pulse voltammograms was also performed. The ion-transfer potentials of some Keggin-type heteropolymolybdate anions at a physiological pH (7.0) showed an excellent correlation with their antitumoral activities, suggesting a crucial role of their stability in the aqueous solution. [References: 25]
机译:两电子还原的Keggin阴离子(α-和β-[(PMo2Mo10O40)-Mo-VO-VI](5-)和α-[(SiMo2Mo10O40)-Mo-VO-VI](6-)的转移通过循环伏安法研究了硝基苯/水的界面。基于在各种pH下的离子转移电势的测量,绘制了离子分布图。发现聚阴离子转移通常伴随有质子转移。为了确认分布图的有效性,还对正脉冲伏安图进行了理论模拟。某些Keggin型杂多钼酸根阴离子在生理pH(7.0)时的离子转移势与其抗肿瘤活性密切相关,表明它们在水溶液中的稳定性至关重要。 [参考:25]

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