Issue 20, 2009
From the journal:

Dalton Transactions

Synthesis of asymmetric supramolecular compounds using a Ni(0) catalysed homo-coupling approach

Lynda Cassidy,a   Sabine Horn,†a   Laura Cleary,a   Yvonne Halpin,a   Wesley R. Browneb  and  Johannes G. Vos*a  

* Corresponding authors

a Solar Energy Conversion SRC, School of Chemical Sciences, Dublin City University, Dublin, Ireland
E-mail: han.vos@dcu.ie
Fax: +353-1-7005503
Tel: +353-1-7005307

b Centre for Systems Chemistry, Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, Groningen, the Netherlands

Abstract

The synthesis and characterisation of a series of dinuclear ruthenium and osmium polypyridyl metal complexes based on the bridging ligands [5-(5′-bipyridin-2′,2″-yl)-3-(pyridin-2-yl)]-1,2,4-triazole (Hpytr-bipy), 2,2′-bis(pyridin-2″yl)-5,5′-bis(pyridin-3″-yl) (bipy-bipy) and 5,5′-bis(pyridin-2″-yl)-3,3′-bis(1,2,4-triazole) (Hpytr-Hpytr) are reported. The dinuclear complexes have been synthesised via a Ni(0) catalysed cross-coupling reaction from brominated precursors. With this approach a mixture of three products is obtained, which are separated by chromatographic methods. The compounds obtained are characterised by elemental analysis, 1H NMR, absorption and emission spectroscopy. The synthetic approach developed offers a new route to asymmetric multinuclear supramolecular structures that is complimentary to the complexes as ligands/complexes as metal approaches.

Graphical abstract: Synthesis of asymmetric supramolecular compounds using a Ni(0) catalysed homo-coupling approach

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Article information

DOI
https://doi.org/10.1039/B817896H
Article type
Paper
Submitted
13 Oct 2008
Accepted
04 Dec 2008
First published
11 Feb 2009

Dalton Trans., 2009, 3923-3928

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Synthesis of asymmetric supramolecular compounds using a Ni(0) catalysed homo-coupling approach

L. Cassidy, S. Horn, L. Cleary, Y. Halpin, W. R. Browne and J. G. Vos, Dalton Trans., 2009, 3923 DOI: 10.1039/B817896H

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