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在碱性介质中于 ２０－３５℃用分光光度法研究了二羟基二过碘酸合镍（ＩＶ）配离子 （ＤＤＮ）氧化天冬氨酸的动力学。结果表明，反应对［Ｎｉ（ＩＶ）］为一级，对天冬氨酸为正分数级。准 一级速率常数（Ｋｏｂｓ）随［ＯＨ－］增加而减小，１／ｋｏｂｓ对［ｉｏ－４］有线性关系，表明二羟基一过碘酸合镍 （ＩＶ）配离子（ＤＭＮ）是氧化剂的活性物种。无盐效应且未检出自由基的存在。据此提出了包括 ＤＰＮ和ＭＰＮ以及天冬氨酸存在前期平衡的反应机理，并求出相应的活化参数。
Kinetics of the oxidation of aspartate by dihydroxydiperiodatonic nickel (IV) complex ion (DDN) was studied spectrophotometrically at 20-35 ° C in alkaline medium. The results showed that the reaction was first order for [Ni (IV)] and positive for aspartic acid. Quasi-first-order rate constants (Kobs) decrease as [OH-] increases, and 1 / kobs has a linear relationship to [io-4], indicating that the dihydroxy-diiodo peroxynitrite (DMN) is an oxidizing agent Of the active species. No salt effect and the presence of free radicals was not detected. Accordingly, a reaction mechanism including the pre-equilibrium of DPN, MPN and aspartic acid is proposed, and the corresponding activation parameters are obtained.