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Issue 8, 2014
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RuIII(edta) mediated oxidation of azide in the presence of hydrogen peroxide. Azide versus peroxide activation

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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

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Publication details

The article was received on 10 Sep 2013, accepted on 15 Oct 2013 and first published on 16 Oct 2013


Article type: Paper
DOI: 10.1039/C3DT52486H
Citation: Dalton Trans., 2014,43, 3087-3094
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    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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