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Synthesis and characterisation of ruthenium complexes containing a pendent catechol ring

O'Brien, Luke and Duati, Marco and Rau, Sven and Guckian, Adrian L. and Keyes, Tia E. and O'Boyle, Noel M. and Serr, Andreas and Görls, Helmar and Vos, Johannes G. (2004) Synthesis and characterisation of ruthenium complexes containing a pendent catechol ring. Dalton Transactions (4). pp. 514-522. ISSN 1477-9226

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Abstract

A series of [Ru(bipy)₂L]⁺ and [Ru(phen)₂L]⁺ complexes where L is 2-[5-(3,4-dimethoxyphenyl)-4H-1,2,4-triazol-3-yl]pyridine (HL1) and 4-(5-pyridin-2-yl-4H-1,2,4-triazol-3-yl)benzene-1,2-diol (HL2) are reported. The compounds obtained have been characterised using X-ray crystallography, NMR, UV/Vis and emission spectroscopies. Partial deuteriation is used to determine the nature of the emitting state and to simplify the NMR spectra. The acid-base properties of the compounds are also investigated. The electronic structures of [Ru(bipy)₂L1]⁺ and Ru(bipy)₂HL1]²⁺ are examined using ZINDO. Electro and spectroelectrochemical studies on [Ru(bipy)₂(L2)]⁺ suggest that proton transfer between the catechol and triazole moieties on L2 takes place upon oxidation of the L2 ligand.

Item Type:Article (Published)
Refereed:Yes
Subjects:Physical Sciences > Chemistry
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Research Initiatives and Centres > National Centre for Sensor Research (NCSR)
Publisher:Royal Society of Chemistry
Official URL:http://dx.doi.org/10.1039/b311989k
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:614
Deposited On:30 Sep 2008 14:39 by DORAS Administrator. Last Modified 16 Feb 2009 17:12

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