Ruthenium(ii) Complexes of Chelating Ligands Containing Benzoxazole and Benzothiazole Subunits: Synthesis, X-Ray Crystallography, Spectroscopy, and Electrochemistry
Chris Richardson A , F. Richard Keene B and Peter J. Steel A CA Department of Chemistry, College of Science, University of Canterbury, Christchurch 8140, New Zealand.
B School of Pharmacy and Molecular Sciences, James Cook University, Townsville, Queensland 4811, Australia.
C Corresponding author. Email: peter.steel@canterbury.ac.nz
Australian Journal of Chemistry 61(3) 183-188 https://doi.org/10.1071/CH08021
Submitted: 21 January 2008 Accepted: 6 March 2008 Published: 26 March 2008
Abstract
Bis(2,2′-bipyridyl)ruthenium(ii) complexes of four chelating ligands that contain benzoxazole or benzothiazole rings have been prepared and characterized by NMR spectroscopy, visible absorption spectroscopy, electrochemical measurements and, in two cases, by X-ray crystallography. The incorporation of these ring systems has a marked effect on the electronic properties of the resulting complexes.
Acknowledgement
The authors thank the Royal Society of New Zealand Marsden Fund and the Australian Research Council for generous financial support. P.J.S. also thanks the RSNZ for the award of a James Cook Research Fellowship. The authors also thank Christopher Fitchett for verification of the electrochemical measurements of complex 5.
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