Issue 15, 2008
From the journal:

Dalton Transactions

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

Stefania Tanase,a   Patricia Marques-Gallego,a   Wesley R. Browne,b   Ronald Hage,c   Elisabeth Bouwman,a   Ben L. Feringab  and  Jan Reedijk*a  

* Corresponding authors

a Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, PO Box 9502, RA Leiden, The Netherlands
E-mail: reedijk@chem.leidenuniv.nl
Fax: +31-71-5274671

b Stratingh Institute for Chemistry, Faculty of Mathematics and Natural Sciences, University of Groningen, Nijenborgh 4, Groningen, AG, The Netherlands

c Unilever R & D Vlaardingen, Olivier van Noortlaan 120, Vlaardingen, AT, The Netherlands

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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Article information

DOI
https://doi.org/10.1039/B716942F
Article type
Paper
Submitted
01 Nov 2007
Accepted
04 Jan 2008
First published
18 Feb 2008

Dalton Trans., 2008, 2026-2033

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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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