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Issue 45, 2008
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Synthesis and characterization of mononuclear hydroxamato and hydroximato complexes of iron(III) based on the tris-(2-pyridylmethyl)amine ligand

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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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Publication details

The article was received on 29 May 2008, accepted on 07 Aug 2008 and first published on 06 Oct 2008


Article type: Paper
DOI: 10.1039/B808967A
Citation: Dalton Trans., 2008,0, 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, 0, 6415
    DOI: 10.1039/B808967A

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