Palladium(II) inhibition during cerium(IV) oxidation of aldoses: A kinetic study

被引：8

作者：

Gupta, M ^{[1
]}

Upadhyay, SK ^{[1
]}

机构：

[1] HARCOURT BUTLER TECHNOL INST,DEPT CHEM,KANPUR 208002,UTTAR PRADESH,INDIA

来源：

TRANSITION METAL CHEMISTRY | 1996年 / 21卷 / 03期

关键词：

D O I：

10.1007/BF00165981

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The kinetics of oxidation of aldoses, namely xylose, arabinose, galactose and glucose, by Ce-IV have been studied in HClO4 + H2SO4 medium and in the presence of Pd-II The reactions exhibit a first order rate dependence with respect to oxidant. The rate is inversely dependent on the [HSO4-]:[H+] ratio. The order of reaction with respect to aldose decreases at higher [aldose]. Due to the formation of a complex between Ce-IV and Pd-II, a retarding effect of [Pd-II] on the rate of disappearance of [Ce-IV] has been observed. A mechanism consistent with the observed kinetic data is proposed.

引用

页码：266 / 269

页数：4

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