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Issue 15, 2008
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Mechanistic implications of the active species involved in the oxidation of hydrocarbons by iron complexes of pyrazine-2-carboxylic acid

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Abstract

The reactivity towards H2O2 of the complexes [Fe(pca)2(py)2]·py (1) and Na2{[Fe(pca3)]2O}·2H2O·CH3CN (2) (where pca is pyrazine-2-carboxylate) and their catalytic activity in the oxidation of hydrocarbons is reported. Addition of H2O2 to 1 results in the formation of a dinuclear Fe(III)–(µ-O)–Fe(III) species characterized spectroscopically and by cyclic voltammetry. By contrast, treatment of 2 with H2O2 results in the formation of mononuclear iron(II) complexes, [Fe(pca)2(solvent)2]. The experimental results indicate that the catalytic activity of the starting complexes 1 and 2 is strongly dependent on the species formed in solution.

Graphical abstract: Mechanistic implications of the active species involved in the oxidation of hydrocarbons by iron complexes of pyrazine-2-carboxylic acid

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Supplementary files

Article information


Submitted
01 Nov 2007
Accepted
04 Jan 2008
First published
18 Feb 2008

Dalton Trans., 2008, 2026-2033
Article type
Paper

Mechanistic implications of the active species involved in the oxidation of hydrocarbons by iron complexes of pyrazine-2-carboxylic acid

S. Tanase, P. Marques-Gallego, W. R. Browne, R. Hage, E. Bouwman, B. L. Feringa and J. Reedijk, Dalton Trans., 2008, 2026
DOI: 10.1039/B716942F

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