This proposal aims to extend the understanding of uracil-ionic liquid interactions, in particular the C¿H2¿¿¿O=C interaction postulated to exist in a recently published study. The work will extend our understanding of cooperative cation/anion effects in the solubilisation process, and is complementary to our previous studies involving glucose dissolution in ionic liquids. Uracil is one of the four nucleobases of RNA and has uses in drug delivery, as well as being a precursor to various pharmaceuticals itself. As such, its solvation structure in ionic liquids (which are also being considered as potential reaction or solvation media for pharmaceuticals) is of particular interest. We intend to resolve the local structure of the mixture around the cation, anion, and solute, but with particular focus on the ring hydrogens of the ionic liquid cation in order to probe possible H-bonding motifs.