Kinetics of oxidation of nickel(II) aza macrocycles by peroxydisulphate in aqueous media

被引：0
|
作者：
Lalitham J. [1 ]
Vijayaraghavan V.R. [1 ]
机构：
[1] Department of Physical Chemistry, University of Madras, Guindy Campus
来源：
Proceedings of the Indian Academy of Sciences: Chemical Sciences | 2000年 / 112卷 / 05期
关键词：
All Open Access; Bronze;
D O I：
10.1007/BF02709283
中图分类号：
学科分类号：
摘要：
The kinetics of the oxidation of nickel (II) hexaaza and nickel (II) pentaaza macrocycles by the peroxydisulphate anion, S2O82-, were studied in aqueous media. Effect of pH on reaction rate was also studied. The rate increases with increase of S2O82- concentration. Rates are almost independent of acid between pH 4 and 2, giving overall a relatively simple second-order rate law followed by oxidation within the ion pair solvent shell. Using rate = + 1/2 d[Ni(L)3+]/dt = k[Ni(L)2+][S2O82-], oxidation rate constants were determined.
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页码：507 / 514
页数：7
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