Issue 4, 2004
From the journal:

Dalton Transactions

Synthesis and characterisation of ruthenium complexes containing a pendent catechol ring†

Luke O'Brien,a   Marco Duati,a   Sven Rau,b   Adrian L. Guckian,a   Tia E. Keyes,a   Noel M. O'Boyle,a   Andreas Serr,ac   Helmar Görlsb  and  Johannes G. Vos*a  

* Corresponding authors

a National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
E-mail: johannes.vos@dcu.ie
Fax: +353 1 7005503
Tel: +353 1 7005307

b Institut für Anorganische und Analytische Chemie, Friedrich-Schiller-University, 07743, Jena, Germany
E-mail: Sven.Rau@uni-jena.de
Fax: +49 3641 948102
Tel: +49 3641 948113

c Fakultät für Chemie, Universität Bielefeld, D-33615 Bielefeld, Germany
E-mail: Andreas.Serr@uni-bielefeld.de

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.

Graphical abstract: Synthesis and characterisation of ruthenium complexes containing a pendent catechol ring

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Article information

DOI
https://doi.org/10.1039/B311989K
Article type
Paper
Submitted
26 Sep 2003
Accepted
23 Dec 2003
First published
20 Jan 2004

Dalton Trans., 2004, 514-522

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Synthesis and characterisation of ruthenium complexes containing a pendent catechol ring

L. O'Brien, M. Duati, S. Rau, A. L. Guckian, T. E. Keyes, N. M. O'Boyle, A. Serr, H. Görls and J. G. Vos, Dalton Trans., 2004, 514 DOI: 10.1039/B311989K

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