Kinetics and mechanism of oxidation of some diols by dihydroxydiperiodatoargentate(III) in alkaline medium

被引：5
|
作者：
Shan, JH [1 ]
Li, SM [1 ]
Huo, SY [1 ]
Shen, SG [1 ]
Sun, HW [1 ]
机构：
[1] Hebei Univ, Coll Chem & Environm Sci, Key Lab Analyt Sci & Technol Hebei Prov, Baoding 071002, Hebei, Peoples R China
来源：
CHINESE JOURNAL OF CHEMISTRY | 2006年 / 24卷 / 04期
关键词：
dihydroxydiperiodatoargentate(III); ethylene glycol; 1,3-butylene glycol; kinetics and mechanism; rate constant;
D O I：
10.1002/cjoc.200690092
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The kinetics of oxidation of ethylene glycol and 1,3-butylene glycol by dihydroxydiperiodatoargentate(III) in alkaline medium have been studied by spectrophotometry in the range of 298.2-318.2 K. It is shown that the reaction was first order with respect to each reductant and Ag(III), and k(obs) increased with an increase of [OH-]. A plausible mechanism of reaction involving a pre-equilibrium of adduct formation between complex and reductants was proposed, which could be applied to explain all experimental phenomena, and the activation parameters of the rate-determining step have been also calculated.
引用
收藏
页码：478 / 480
页数：3
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