Kinetics and Mechanism of Oxidation of Leucine and Alanine by Ag(III) Complex in Alkaline Medium

C. Song, Lei Chen, J. Shan
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引用次数: 4

Abstract

Kinetics and mechanism of oxidation of leucine and alanine by Ag(III) complex were studied spectrophotometrically in alkaline medium at constant ion strength. The reaction was in first order with respect to Ag(III) complex and amino acids (leucine, alanine). The second-order rate constant, 𝑘−, decreased with the increasing in [OH−] and [IO4−]. A plausible mechanism was proposed from the kinetics study, and the rate equations derived from mechanism can explain all experimental phenomena. The activation parameters were calculated at 298.2 K.
Ag(III)配合物在碱性介质中氧化亮氨酸和丙氨酸的动力学及机理
用分光光度法研究了Ag(III)配合物在碱性介质中恒离子强度氧化亮氨酸和丙氨酸的动力学和机理。Ag(III)配合物与氨基酸(亮氨酸、丙氨酸)的反应为一级反应。二阶速率常数𝑘−随[OH−]和[IO4−]的增加而减小。从动力学研究中提出了一个合理的机理,由机理推导出的速率方程可以解释所有的实验现象。在298.2 K下计算活化参数。
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