Ionic liquids, liquids composed entirely of ions, have been referred to as �designer solvents,� because by altering the structure of the anionic and cationic counterparts, it is possible to control the properties of ionic liquids and as a result it is plausible to design an optimal solvent for a particular process. Primarily, this paradigm has been demonstrated for several synthetic transformations, while non-covalent interactions in ionic liquids have received less attention. Using several spectroscopic techniques, we have shown that the conformation and intermolecular interactions of several small molecules could easily be tuned by adjusting the structure of either the cation or anion within a set of 1,3-dialkylsubstituted imidazolium-based ionic liquids. Proof-of-principle cases will include ionic liquid-controlled conformation of tetracycline and a porphyrin rotor as well as the modulation of the self-assemblies of amphotericin B and supramolecular polymers.

Studies on intra- and intermolecular interactions in ionic liquids

247th National Meeting (2014)

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