Investigating the Imidazolium-Anion Interaction through the Anion-Templated Construction of Interpenetrated and Interlocked Assemblies
authors Spence, GT; Serpell, CJ; Sardinha, J; Costa, PJ; Felix, V; Beer, PD
nationality International
journal CHEMISTRY-A EUROPEAN JOURNAL
author keywords anions; molecular recognition; rotaxanes; supramolecular chemistry; template synthesis
keywords IONIC LIQUIDS; HYDROGEN-BONDS; ELECTRONIC-STRUCTURE; RECEPTORS; BINDING; DRIVEN; CATION; SPECTROSCOPY; RECOGNITION; CHLORIDE
abstract The interaction between imidazolium cations and coordinating anions is investigated through the anion-templated assembly of interpenetrated and interlocked structures. The orientation of the imidazolium motif with respect to anion binding, and hence the hydrogen bond donor arrangement, was varied in acyclic receptors, interpenetrated assemblies, and the first mono-imidazolium interlocked systems. Their anion recognition properties and co-conformations were studied by solution-phase H-1 NMR investigations, solid-state structures, molecular dynamics simulations, and density functional theory calculations. Our findings suggest that the imidazolium-anion binding interaction is dominated by electrostatics with hydrogen-bonding contributions having weak orientational dependence.
publisher WILEY-V C H VERLAG GMBH
issn 0947-6539
year published 2011
volume 17
issue 46
beginning page 12955
ending page 12966
digital object identifier (doi) 10.1002/chem.201102005
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000297737900021
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journal impact factor 4.857
5 year journal impact factor 4.636
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