ELECTRON-TRANSFER REACTIONS OF TRIS(1,10-PHENANTHROLINE)COBALT(II) WITH COPPER(III) IMINE OXIME COMPLEXES

被引：2

作者：

ALSOGAIR, FM ^{[1
]}

SULFAB, Y ^{[1
]}

机构：

[1] KUWAIT UNIV,DEPT CHEM,POB 5969,SAFAT 13060,KUWAIT

来源：

TRANSITION METAL CHEMISTRY | 1993年 / 18卷 / 01期

关键词：

D O I：

10.1007/BF00136041

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The kinetics of oxidation of [Co(II)(phen)3 ]2 +(phen = 1,10-phenanthroline) by copper(III) imine-oxime complexes are first-order in each reactant. All reactions proceed via two parallel pathways; one pH independent, the other pH dependent. The second-order rate constant varies wit] [H+] as k2 = k2o + k2H[H+]. The rapidity of the electron transfer step coupled with the relative inertness of [Co(II)(phen)3]2+ over the pH range studied and the absence of a bridging atom on the phen ligand, supports an outer-sphere mechanism for this process. Reasonably good agreement between the experimental rate constants and those calculated using the Marcus equation has been obtained.

引用

页码：19 / 22

页数：4

共 28 条

[1] COORDINATION SPHERE FLEXIBILITY AT COPPER - CHEMISTRY OF A UNIPOSITIVE COPPER(II) MACROCYCLE, [CU(CYCLOPS)]+ [J].