KINETICS AND MECHANISM OF SILVER(I)-CATALYSED OXIDATION OF VALINE BY CERIUM(IV) IN ACID PERCHLORATE MEDIUM

被引：0
|
作者：
Yadav, M. B. [2 ]
Devra, V. [3 ]
Rani, A. [1 ]
机构：
[1] Kota Univ, Dept Pure & Appl Chem, Kota 324005, India
[2] Govt Coll Kota, PG Dept Chem, Kota 324001, India
[3] Govt JDB Girls Coll, PG Dept Chem, Kota 324001, India
来源：
OXIDATION COMMUNICATIONS | 2012年 / 35卷 / 02期
关键词：
valine; cerium(IV); silver(I); perchloric acid; SILVER(I) CATALYZED OXIDATION; ALPHA-AMINO-ACIDS; CHLORAMINE-T; L-CYSTINE; ALANINE; ION; ABSENCE;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The kinetics of the silver(I)-catalysed oxidation of valine with cerium(IV) has been studied in perchloric acid medium. An usual decrease in rate with increasing concentration of cerium(IV) is observed and the detailed quantitative analysis of this behaviour is presented on the basis of dimerisation of cerium(IV). The reaction exhibits fractional dependence on valine and that has been accounted for the formation of an adduct with silver(I). A plausible reaction mechanism is given and the rate law is derived: k = k(1)K(1)[VH+] [H+]/([H+] + K-h)(1 + K-1[VH+]), where the observed k is second order rate constant.
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页码：378 / 388
页数：11
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