Syntheses, structures and redox properties of tris(pyrazolyl)borate-capped ruthenium vinyl complexes

Farmer, Julian D.; Man, Wing Y.; Fox, Mark A.; Yufit, Dmitry S.; Howard, Judith A.K.; Hill, Anthony F.; Low, Paul J.

doi:10.1016/j.jorganchem.2012.09.001

Syntheses, structures and redox properties of tris(pyrazolyl)borate-capped ruthenium vinyl complexes

Farmer, Julian D.; Man, Wing Y.; Fox, Mark A.; Yufit, Dmitry S.; Howard, Judith A.K.; Hill, Anthony F.; Low, Paul J.

Authors

Julian D. Farmer

Wing Y. Man

Dr Mark Fox m.a.fox@durham.ac.uk
Assistant Professor

Dmitry S. Yufit

Judith A.K. Howard

Anthony F. Hill

Paul J. Low

Abstract

Reaction of RuHCl(CO)(PPh3)3 with aryl alkynes HCCC6H4R-4 [1: R = N(C6H4Me-4)2 (a), OMe (b), Me (c), CO2Me (d), NO2 (e)] gives the five-coordinate vinyl complexes Ru(CHCHC6H4R-4)Cl(CO)(PPh3)2 (2a–e). Reaction of 2a with excess PMe3 gives crystallographically characterised Ru{CHCHC6H4N(C6H4Me-4)2-4}Cl(CO)(PMe3)3 (3a), whilst reaction of 2a–e with KTp affords Ru(CHCHC6H4R-4)(CO)(PPh3)Tp (4a–e) bearing the facially capping Tp− ligand. Electrochemical and spectroelectochemical properties of 4a–e are consistent with substantial redox activity associated with the vinyl ligand, and these properties have been satisfactorily modelled by DFT based calculations of electronic structure.

Citation

Farmer, J. D., Man, W. Y., Fox, M. A., Yufit, D. S., Howard, J. A., Hill, A. F., & Low, P. J. (2012). Syntheses, structures and redox properties of tris(pyrazolyl)borate-capped ruthenium vinyl complexes. Journal of Organometallic Chemistry, 721-722, 173-185. https://doi.org/10.1016/j.jorganchem.2012.09.001

Journal Article Type	Article
Publication Date	Dec 15, 2012
Deposit Date	May 2, 2013
Publicly Available Date	Aug 15, 2013
Journal	Journal of Organometallic Chemistry
Print ISSN	0022-328X
Publisher	Elsevier
Peer Reviewed	Peer Reviewed
Volume	721-722
Pages	173-185
DOI	https://doi.org/10.1016/j.jorganchem.2012.09.001

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Copyright Statement
NOTICE: this is the author’s version of a work that was accepted for publication in 'Journal of organometallic chemistry'. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of organometallic chemistry, 721, 15 December 2012, 10.1016/j.jorganchem.2012.09.001