Issue 8, 2014

RuIII(edta) mediated oxidation of azide in the presence of hydrogen peroxide. Azide versus peroxide activation

Abstract

The [RuIII(edta)(H2O)] (edta4− = ethylenediaminetetraacetate) complex catalyzes the oxidation of azide (N3) with H2O2, mimicking the action of metallo-enzymes such as catalase and peroxidase in biochemistry. The kinetics of the catalytic oxidation process was studied by using stopped-flow and rapid-scan spectrophotometry as a function of [RuIII(edta)], [H2O2], [N3] and pH. The catalytic activity of the different oxidizing species produced in the reaction of [RuIII(edta)(H2O)] with H2O2 for the oxidation of azide was compared to the oxidation of coordinated azide in [RuIII(edta)N3]2− by H2O2. Detailed reaction mechanisms in agreement with the spectroscopic and kinetic data are presented for both reaction paths.

Graphical abstract: RuIII(edta) mediated oxidation of azide in the presence of hydrogen peroxide. Azide versus peroxide activation

Supplementary files

Article information

Article type
Paper
Submitted
10 Sep 2013
Accepted
15 Oct 2013
First published
16 Oct 2013

Dalton Trans., 2014,43, 3087-3094

RuIII(edta) mediated oxidation of azide in the presence of hydrogen peroxide. Azide versus peroxide activation

D. Chatterjee, A. Franke, M. Oszajca and R. van Eldik, Dalton Trans., 2014, 43, 3087 DOI: 10.1039/C3DT52486H

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