Metal-induced gelation in dipyridyl ureas

Peter Byrne, Gareth O Lloyd, Lucas Applegarth, Kirsty M Anderson, Nigel Clarke, Jonathan W Steed

Research output: Contribution to journalArticle

76 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)2261-2274
Number of pages14
JournalNew Journal of Chemistry
Volume34
Issue number10
DOIs
Publication statusPublished - 2010

Keywords

  • MASS ORGANIC GELATORS
  • ANION-BINDING
  • INFRARED TEMPERATURE
  • SUPRAMOLECULAR GELS
  • DICARBOXYLIC-ACID
  • ORGANOGELS
  • SOLVENTS
  • COORDINATION
  • DERIVATIVES
  • COMPLEXES

Cite this

Byrne, P., Lloyd, G. O., Applegarth, L., Anderson, K. M., Clarke, N., & Steed, J. W. (2010). Metal-induced gelation in dipyridyl ureas. New Journal of Chemistry, 34(10), 2261-2274. https://doi.org/10.1039/c0nj00278j