RESEARCH ARTICLE

 

Oxo and oxofree rhenium(V) complexes with N,O-donor Schiff bases

 

 

Irvin N. Booysen^{I, *}; Muhammed Ismail^I; Thomas I.A. Gerber^II; Matthew Akerman^I; Benjamin Van Brecht^II

^ISchool of Chemistry and Physics, University of Kwazulu-Natal, Private Bag X01, Scottsville, Pietermaritzburg, 3209, South Africa
^IIDepartment of Chemistry, Nelson Mandela Metropolitan University, Port Elizabeth, 6031, South Africa

 

 

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ABSTRACT

The reaction between cis-[Re^VO₂I(PPh₃)₂] and H₃duo (N-(2-hydroxybenzylidene)-5-amino-1,3-dimethyl uracil) led to the formation of the oxofree, imido compound, trans-[Re^V(ddd)(Hduo)(PPh₃)₂]I (1) (H₂ddd = 5,6-diamino-1,3-dimethyluracil). An oxo complex, cis-[Re^V(bcp)OCl₂(PPh₃)](2) [Hbcp = N-(2-hydroxybenzylidene)-benzothiazole] was isolated from the reaction of trans-[ReO^VCl₃(PPh₃)₂]with Hbcp. The crystal structures of the compounds were determined by single crystal X-ray diffraction.

Keywords: Rhenium(V), imido, oxo, crystal structure, spectral characterization

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Acknowledgements

We are grateful to the University of KwaZulu-Natal and the National Research Foundation of South Africa for financial support.

 

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Received 12 June 2012
Revised 24 July 2012
Accepted 26 July 2012

 

 

* To whom correspondence should be addressed. E-mail: booyseni@ukzn.ac.za