Issue 10, 2010
From the journal:

New Journal of Chemistry

Metal-induced gelation in dipyridylureas†

Peter Byrne,a   Gareth O. Lloyd,a   Lucas Applegarth,a   Kirsty M. Anderson,a   Nigel Clarkea  and  Jonathan W. Steed*a  

* Corresponding authors

a Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK
E-mail: jon.steed@durham.ac.uk

Abstract

A series of pyridyl-appended bis(urea) ligands form supramolecular gels in the presence of metal ions (metallogels), particularly copper(II) and silver(I). The gels have been characterised by rheometry and SEM, and the effect of the metal ions on gel strength and morphology examined. The metal-induced gelation is linked to the competition between urea–urea and urea–pyridyl hydrogen bonding interactions. Crystals grown from these gels reveal a wealth of structural information about these systems that can be related to gel structure using powder X-ray diffraction data of their xerogels.

Graphical abstract: Metal-induced gelation in dipyridyl ureas

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Article information

DOI
https://doi.org/10.1039/C0NJ00278J
Article type
Paper
Submitted
14 Apr 2010
Accepted
08 Jun 2010
First published
30 Jun 2010

New J. Chem., 2010,34, 2261-2274

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Metal-induced gelation in dipyridyl ureas

P. Byrne, G. O. Lloyd, L. Applegarth, K. M. Anderson, N. Clarke and J. W. Steed, New J. Chem., 2010, 34, 2261 DOI: 10.1039/C0NJ00278J

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