Ionic liquid binary mixtures + molecular anions

With the aim of completing this stndy, we analysed the microscopic features of solvent systems resulting from the basis of binary mixtures formed by a protic molecular solvent (MeOH, ethanol (EtOH), propan-l-ol, propan-2-ol or 2-elhoxy-ethanol (EtOEtOH)) and a bmim-based ionic liquid cosolvent composed of different anions [BE ], [PE ], chloride [Cl] and bromide [Br]. The selection of these molecular solvents was done mainly on the basis of their HBD capacity. At the same time, it was conveiuent to discuss the incidence of anion type on the solvation pattern. 

In general, for the proposed new solvents , it can be observed that the dipolarity/ polarisability and basicity are similar to those of AN and DMF. The acidity is quite different being highly increased, particularly in the case of AN. In relation to the protic solvent + imidazolium-based ILs binary solvent mixtures, the compositions of the mixtures are dependent on both the nature of the protic solvent as well as on the anion type of the ionic liquid. With ethanol and 2-ethoxyethanol as molecular solvents, the IL displays large solubility, particularly when the anions are [BF ] or [Cl]. The ILs [bmim][PF ] and [bmim][Br] exhibit the lowest solubility, so their mixtures were explored at the smallest range of compositions. 

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