首页> 外文期刊>Chemical Physics: A Journal Devoted to Experimental and Theoretical Research Involving Problems of Both a Chemical and Physical Nature >Electron transfer reactions in micellar systems: separation of the true (unimolecular) electron transfer rate constant in its components
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Electron transfer reactions in micellar systems: separation of the true (unimolecular) electron transfer rate constant in its components

机译:胶束系统中的电子转移反应:组分中真实(单分子)电子转移速率常数的分离

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摘要

The intramolecular electron transfer reaction within the binuclear complex [(en)_2Co~(III)(μ-2-pzCO_2)Fe~(II)(CN)_5]~- has been studied in micellar (dodecylsulphate sodium slat (SDS) and hexadecyltrimethylammonium chloride (CTACl)) solutions. The true (unimolecular) electron transfer rate constant as well as the parameters controlling this rate constant, the reorganization free energy and the reaction free energy were obtained. This has permitted us to establish that, in spite of the similar behaviour observed for k_(et) in both kinds of micellar solutions, in the case of SDS solutions the kinetics is controlled by both the driving force and the reorganization energy. In the case of CTACl, only the reorganization energy controls the k_(et) variations.
机译:在胶束(十二烷基硫酸钠钠板条(SDS))中研究了双核络合物[(en)_2Co〜(III)(μ-2-pzCO_2)Fe〜(II)(CN)_5]〜-中的分子内电子转移反应。十六烷基三甲基氯化铵(CTACl))溶液。获得了真实的(单分子)电子转移速率常数以及控制该速率常数的参数,重组自由能和反应自由能。这使我们可以确定,尽管在两种胶束溶液中都观察到了k_(et)的相似行为,但在SDS溶液中,动力学受驱动力和重组能的控制。在CTCCl的情况下,只有重组能量才能控制k_(et)的变化。

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