Issue 45, 2008
From the journal:

Dalton Transactions

Synthesis and characterization of mononuclear hydroxamato and hydroximato complexes of iron(iii) based on the tris-(2-pyridylmethyl)amine ligand†

Erwan Galardon,a   Mohamed Selkti,b   Pascal Roussel,c   Alain Tomasb  and  Isabelle Artaud*a  

* Corresponding authors

a Laboratoire de Chimie et Biochimie Toxicologiques et Pharmacologiques, UMR 8601 CNRS, Université Paris Descartes, 45 rue des St-Pères, 75270 Paris Cedex 06, France
E-mail: isabelle.artaud@univ-paris5.fr
Fax: +33 1 4286 8387
Tel: +33 1 4286 2189

b Laboratoire de Cristallographie et RMN Biologiques, UMR 8015 CNRS, Université Paris Descartes, 4 avenue de l'Observatoire, 75270 Paris cedex 06, France

c Laboratoire de Cristallochimie et Physicochimie du Solide, UMR 8012 CNRS, Université des Sciences et Technologies de Lille et École Nationale Supérieure de Chimie de Lille BP, 108 59652 Villeneuve d'Ascq Cedex, France

Abstract

The reaction of acetohydroxamic (CH3C(O)–NHOH), benzhydroxamic acid (PhC(O)–NHOH) or 1-hydroxypyridin-2(1H)-one (pyrC(O)–NOH) in the presence of tris-(2-pyridylmethyl)amine (TPA), sodium methoxide and an iron(III) salt yields the mononuclear complexes [Fe(TPA)(CH3C(O)–NHO)]2+ (1a), [Fe(TPA)(PhC(O)–NHO)]2+ (1b) and [Fe(TPA)(pyrC(O)–NO)]2+ (1c). The hydroxamato complexes 1a and 1b are easily converted to their hydroximato form [Fe(TPA)(CH3C(O)[double bond, length as m-dash]NO)]+ (2a) and [Fe(TPA)(PhC(O)[double bond, length as m-dash]NO)]+ (2b) by addition of base. The complexes described were characterized by UV-vis spectroscopy, EPR and cyclic voltammetry, as well as single-crystal X-ray crystallography for 1a and 2b.

Graphical abstract: Synthesis and characterization of mononuclear hydroxamato and hydroximato complexes of iron(iii) based on the tris-(2-pyridylmethyl)amine ligand

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Article information

DOI
https://doi.org/10.1039/B808967A
Article type
Paper
Submitted
29 May 2008
Accepted
07 Aug 2008
First published
06 Oct 2008

Dalton Trans., 2008, 6415-6420

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Synthesis and characterization of mononuclear hydroxamato and hydroximato complexes of iron(III) based on the tris-(2-pyridylmethyl)amine ligand

E. Galardon, M. Selkti, P. Roussel, A. Tomas and I. Artaud, Dalton Trans., 2008, 6415 DOI: 10.1039/B808967A

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