Ionic liquid binary mixtures + molecular solvent

Mancini PME, Fortunate G, Adam C, Vottero LR (2008) Solvent effects on chemical processes. New solvents designed on the basis of the molecular-microscopic properties of binary mixtures molecular solvent + 1,3-dialkylimidazolium ionic liquids. J Phys Org Chem... 

Chapter 13 discusses the design and analysis of the microscopic features of binary solvent systems formed by room temperature ionic liquids (RTILs) with molecular solvents. For this purpose, protic ionic hquids (PILs), ethylammoiuum nitrate (FAN), and l-n-butyl-3-methylimidazolium (bmim)-based ILs and the molecular solvents such as acetonitrile, dimethyl sulfoxide, A,A-dimethylfonnamide, and protic (different alcohols) are selected. The study focuses on the identification of solvent mixtures of relevant solvating properties to propose them as new solvents. ... 

Ionic Liquids as Binary Mixtures with Selected Molecular Solvents, Reactivity Characterisation and Molecular-Microscopic Properties... 

General Considerations on Binary Solvent Mixtures Containing Ionic Liquids and Molecular Solvents... 

Ionic Liquids as Binary Mixtures with Selected Molecular Solvents. 

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. 

Fortunate G, Mancini PME, Bravo V, Adam C (2010) New solvent designed on the basis of the molecular-microscopic properties ob binary mixtures of the type protic molecular solvent + l-butyl-3-methylimidazolium-based ionic liquids. J Phys Chem B 114 11804-11819... 

Fortunate, G., Mancini, P.M.E., Bravo, V., Adam, C. (2010). New solvent designed on the basis of molecular microscopic properties of binary mixtures of the type protic molecular solvent + l-butyl-3-methylimidazolium-based ionic liquids. The Journal of Physical Chemistry B, 114,11804-11817, ISSN 1520-5707 Hitchcock, P.B., Mohammed, T.J., Seddon K.R., Zora, J.A., Hussey, C.L., Ward, E.H. (1986). 

Ciocirlan O, Croitoru O, Julian O (2011) Densities viscosities for binary Mixtures of 1-butyl-3-methylimidazolium tetrafluoroborate ionic liquid with molecular solvents. J Chem Eng Data 56 1526-1534... 

Reactive absorption processes occur mostly in aqueous systems, with both molecular and electrolyte species. These systems demonstrate substantially non-ideal behavior. The electrolyte components represent reaction products of absorbed gases or dissociation products of dissolved salts. There are two basic models applied for the description of electrolyte-containing mixtures, namely the Electrolyte NRTL model and the Pitzer model. The Electrolyte NRTL model [37-39] is able to estimate the activity coefficients for both ionic and molecular species in aqueous and mixed solvent electrolyte systems based on the binary pair parameters. The model reduces to the well-known NRTL model when electrolyte concentrations in the liquid phase approach zero [40]. 

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