Abstract
Multi-component solid state structures containing 1-octyl-2,3- dimethylimidazolium cations, anionic p-sulfonatocalix[4]arenes and/or large mono-phosphonium cations, as well as lanthanide metal ions are readily accessible, which have the calixarenes organised into bi-layers with gadolinium(III) coordinated between them. The imidazolium ring is confined in the calixarene cavity, essentially forming "molecular capsules" based on two calixarenes, or with the n-octyl chain penetrating the adjacent bi-layer, with the nature of the calixarene-dimethylimidazolium interplay mapped out using Hirshfeld surface analysis. The supermolecules [1-octyl-2,3- dimethylimidazolium ∩ p-sulfonatocalix[4]arene] are persistent in aqueous solutions (1H NMR).
Original language | English |
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Pages (from-to) | 414-419 |
Number of pages | 6 |
Journal | New Journal of Chemistry |
Volume | 34 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2010 |