KINETICS AND MECHANISM OF THE AUTOXIDATION OF IRON(II) INDUCED THROUGH CHELATION BY ETHYLENEDIAMINETETRAACETATE AND RELATED LIGANDS

被引：116

作者：

ZANG, V ^{[1
]}

VANELDIK, R ^{[1
]}

机构：

[1] UNIV WITTEN HERDECKE,INST INORGAN CHEM,STOCKUMER STR 10,W-5810 WITTEN,GERMANY

来源：

INORGANIC CHEMISTRY | 1990年 / 29卷 / 09期

关键词：

D O I：

10.1021/ic00334a023

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The oxidation of FeII(L) complexes by molecular oxygen is significantly enhanced by the presence of a chelating ligand L. The kinetics of this reaction was studied for L = ethylenediaminetetraacetate, jV-(hydroxyethyl)ethylenediaminetriacetate, and di-ethylenetriaminepentaacetate as a function of [FeII(L)J, [O2], pH, temperature, and pressure. All the observed kinetic relationships can be accounted for in terms of a mechanism in which O2rapidly reacts with FeII(L) to produce FeII(L)O2, followed by three parallel reaction steps. These include spontaneous and acid-catalyzed electron transfer, as well as a reaction with FeII(L) to produce (L)FeIII-O2 2--FeIII(L). The results are discussed in reference to the available literature data for these and related oxidation processes. © 1990, American Chemical Society. All rights reserved.

引用

页码：1705 / 1711

页数：7

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