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Issue 10, 2010
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Metal-induced gelation in dipyridylureas

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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 ureaurea and ureapyridyl 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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Supplementary files

Article information


Submitted
14 Apr 2010
Accepted
08 Jun 2010
First published
30 Jun 2010

New J. Chem., 2010,34, 2261-2274
Article type
Paper

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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