物理化学学报 >> 1992, Vol. 8 >> Issue (04): 500-504.doi: 10.3866/PKU.WHXB19920414
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谢恩海; 孟庆水; 王之朴
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Xie En-Hai; Meng Qing-Shui; Wang Zhi-Pu
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关键词: 四价镍, 停止流动法, 化学动力学及机理, 氧化还原反应
Abstract: The kinetics and mechanism of electron transfer from sodium tartrate to Ni(Ⅳ) periodate complex have been studied in aqueous alkaline medium using spectroscopic and stopped-flow method. The kinetics exhibits a pseudo first order for the disap-pearance of Ni(Ⅳ) periodate complex when substrate is present in excess. The order for the substrate found is not an integer. Additon of NaIO_4 and NaOH affects the reaction rates. Results are interpreted in terms of a mechanism involving two separated steps of one-electron transfer from the substrate to the species containing Ni(IV). The activation parameters of this reaction have been calculated.
Key words: Diperiodatonicolate, Stopped-Flow method, Kinetics and mechanism, Redox reaction
谢恩海;孟庆水;王之朴. 二过碘酸合镍(IV)氧化酒石酸钠的动力学[J]. 物理化学学报, 1992, 8(04): 500-504.
Xie En-Hai; Meng Qing-Shui; Wang Zhi-Pu. Kinetics of Oxidation of Sodium Tartrate by Ni(IV) Periodate Complex in Aqueous Alkaline Medium[J]. Acta Phys. -Chim. Sin., 1992, 8(04): 500-504.
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链接本文: http://www.whxb.pku.edu.cn/CN/10.3866/PKU.WHXB19920414
http://www.whxb.pku.edu.cn/CN/Y1992/V8/I04/500
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