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The electronic structures of diruthenium complexes containing an oligo(phenylene ethynylene) bridging ligand, and some related molecular structures.

Khairul, Wan M. and Fox, Mark A. and Schauer, Phil A. and Yufit, Dmitry S. and Albesa-Jové, David and Howard, Judith A. K. and Low, Paul J. (2010) 'The electronic structures of diruthenium complexes containing an oligo(phenylene ethynylene) bridging ligand, and some related molecular structures.', Dalton transactions., 39 (48). pp. 11605-11615.

Abstract

The complexes [{Cp′(L2)Ru}CCC6H4CCC6H2(OMe)2CCC6H4CC{Ru(L2)Cp′}](L2 = (PPh3)2, Cp′ = Cp; L2 = dppe, Cp′ = Cp*) in which the metal centres are bridged by an oligomeric phenylene ethynylene (OPE) ligand have been prepared and the electronic structure of these representative ruthenium-capped OPEs investigated using a combination of electrochemical, UV-vis-NIR and IR spectroelectrochemical methods, and DFT-based calculations. The diruthenium complexes are oxidised to the thermodynamically stable dications [Cp′Ru(L2)CCC6H4CCC6H2(OMe)2CCC6H4CCRu(L2)Cp′]2+, which on the basis of the spectroelectrochemical and computational results can be described in terms of two non-interacting Ru(CCAr)(L2)Cp′ moieties. X-ray structures of the oligophenyleneethynylene HCCC6H4CCC6H2(OMe)2CCC6H4CCH, the bis(gold) complex Ph3PAuCCC6H4CCC6H2(OMe)2CCC6H4CCAuPPh3 and the precursor 1-ethynyl-4-(trimethylsilylethynyl)benzene are also reported.

Item Type:Article
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1039/c0dt00809e
Record Created:10 Jan 2012 12:35
Last Modified:20 Nov 2014 11:09

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