Kinetics and mechanism of the oxidation of a ternary complex involving nitrilotriacetatocobaltate(II) and succinic acid by N-bromosuccinimide

被引：7

作者：

Abdel-Khalek, AA ^{[1
]}

Ewais, HA ^{[1
]}

Khaled, ESH ^{[1
]}

Abdel-Hamied, A ^{[1
]}

机构：

[1] Cairo Univ, Fac Sci Beni Suef, Dept Chem, Bani Suwayf, Egypt

来源：

TRANSITION METAL CHEMISTRY | 2003年 / 28卷 / 06期

关键词：

D O I：

10.1023/A:1025450110292

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The kinetics of oxidation of [(CoNS)-N-II(H2O)(2)](3-) by N-bromosuccinimide (NBS) in aqueous solution has been studied spectrophotometrically in the 20-40 degreesC range. The reaction is first order each in [NBS] and [(CoNS)-N-II(H2O)(2)](3-), and the rate of reaction increases with increasing pH between 6.64 and 7.73. The thermodynamic activation parameters have been calculated. The experimental rate law is consistent with a mechanism in which the deprotonated [(CoNS)-N-II(H2O)(OH)](4-) is considered to be the most reactive species compared to its conjugate acid. It is assumed that electron transfer takes place via an inner-sphere mechanism.

引用

页码：635 / 639

页数：5

共 20 条

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