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South African Journal of Chemistry

On-line version ISSN 1996-840X
Print version ISSN 0379-4350

S.Afr.j.chem. (Online) vol.63  Durban  2010

 

RESEARCH ARTICLE

 

The oxidation of rhenium(III) by dioxygen in the presence of tri- and tetradentate N,O-donor ligands

 

 

Peter MayerI; Nonzaliseko C. YumataII; Thomas I.A. GerberII, *; Abubak'r AbrahamsII

IDepartment of Chemistry, Ludwig-Maximilians University, D-81377 München, Germany
IIDepartment of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth, 6031 South Africa

 

 


ABSTRACT

The oxidation of trans-[ReCl3(MeCN)(PPh3)2] by dioxygen in the presence of the potentially tridentate N2O-donor ligand 2-[((2-pyridinylmethyl)amino)methyl]phenol (Hham) in ethanol led to the formation of the hydrogen-bonded oxorhenium(V) dimer [ReOCl2(ham)]2. With the potentially tetradentate N2O2-chelate N,N-bis(2-hydroxybenzyl)-aminomethylpyridine (H2hap), the '4 + 1' complex [ReOCl(hap)] was isolated. Both compounds were characterized by 1Ή NMR and infrared spectroscopy, and X-ray crystallography.

Keywords: Oxidation, oxorhenium(V), multidentate ligands, crystal structures


 

 

Full text available only in PDF format.

 

 

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Received 11 February 2010
Revised 3 May 2010
Accepted 4 May 2010

 

 

*To whom correspondence should be addressed. E-mail: thomas.gerber@nmmu.ac.za

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