Supramolecular NHC ligands: on the influence of ZnII-templates on the activity of RhI(cod) complexes in ‘carbene polymerization’

Miguel Rubio; Erica Jellema; Maxime A. Siegler; Anthony L. Spek; Joost N. H. Reek; Bas de Bruin

doi:10.1039/B911339H

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Supramolecular NHC ligands: on the influence of Zn^II-templates on the activity of Rh^I(cod) complexes in ‘carbenepolymerization’†

Miguel Rubio,^a Erica Jellema,^a Maxime A. Siegler,^b Anthony L. Spek,^b Joost N. H. Reek*^a and Bas de Bruin*^a

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* Corresponding authors

^a Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, Amsterdam, The Netherlands
E-mail: j.n.h.reek@uva.nl, b.debruin@uva.nl
Fax: +31 20 525 5604/6495
Tel: +31 20 5255265

^b Bijvoet Center for Biomolecular Research, Utrecht, The Netherlands

Abstract

New Rh^I(cod) complexes of N-heterocyclic carbene ligands containing a pending pyridyl moiety for subsequent binding of Zn^II-templates were designed for supramolecular catalyst control in ‘carbene polymerization’ reactions. Zn^II-templates indeed have an influence on the yields and the polymer molecular weights (and weight distributions) produced by these ‘supramolecular assemblies’. However, control experiments reveal that the effect of the Zn^II-template on the polymerization results is general and not due to the assembly formation.

This article is part of the themed collection: Metal-Catalysed Polymerisation

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Article information

DOI: https://doi.org/10.1039/B911339H
Article type: Paper
Submitted: 09 Jun 2009
Accepted: 18 Aug 2009
First published: 07 Sep 2009

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Dalton Trans., 2009, 8970-8976

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Supramolecular NHC ligands: on the influence of Zn^II-templates on the activity of Rh^I(cod) complexes in ‘carbene polymerization’

M. Rubio, E. Jellema, M. A. Siegler, A. L. Spek, J. N. H. Reek and B. de Bruin, Dalton Trans., 2009, 8970 DOI: 10.1039/B911339H

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Dalton Transactions