Correlation analysis of reactivity in the reduction of trans-chloro(RC6H4NH2)bis(1,2-diaminoethane)cobalt(III) complexes by hexacyanoferrate(II) in aqueous methanol

被引：16

作者：

Karthikeyan, G ^{[1
]}

Anbalagan, K ^{[1
]}

Elango, KP ^{[1
]}

机构：

[1] Deemed Univ, Gandhigram Rural Inst, Dept Chem, Gandhigram 624302, India

来源：

TRANSITION METAL CHEMISTRY | 2000年 / 25卷 / 02期

关键词：

D O I：

10.1023/A:1007089615780

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The structural and solvent effects on the reduction of trans-chloro(RC6H4NH2)bis(1,2-diaminoethane)cobalt(III) ion (R = H, p-Me, p-OMe, p-OEt, p-F, m-Me and m-OMe) by the hexacyanoferrate(II) complex was investigated in aqueous MeOH. The second order rate constants for these reactions were determined spectrophotometrically at three different temperatures and activation parameters have been computed. Reduction proceeding through ion-pair formation is proposed on the basis of the Laidler-Eyring and Grunwald-Winstein equations. The influence of added co-solvent on the reactivity has been analysed using multiple regression equations viz. Kamlet-Taft and Swain. The reduction rates were correlated with Hammett's substituent constants yielding a negative reaction constant.

引用

页码：213 / 218

页数：6

共 22 条

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