MECHANISM OF OXIDATION OF AROMATIC-AMINES BY PEROXOMONOSULFATE - A KINETIC-STUDY

被引:5
作者
REDDY, MS
RAJANNA, KC
NASEERUDDIN, A
机构
[1] Department of Chemistry, Osmania University, Hyderabad
关键词
D O I
10.1002/kin.550271202
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Oxidation of aromatic amines (substrate) by peroxomonosulphate (PMS) in phthalate buffers at various temperatures revealed first-order dependence on [PMS] as well as [Substrate]. Rate of oxidation was found to increase with an increase in pH as well as dielectric constant (D) of the medium. The most plausible mechanism involving PMS(-) and substrate in rate limiting step was proposed. Hammett's plot of log-rate constant versus sigma deviated from linearity. Deviations were explained due to ara resonance interaction energies. (C) 1995 John Wiley & Sons, Inc.
引用
收藏
页码:1143 / 1150
页数:8
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