Microscopic solvent properties protic ionic liquids

Abstract This chapter presents the design and analysis of the microscopic features of binary solvent systems formed by ionic liquids, particularly room temperature ionic liqnids with molecular solvents. Protic ionic liquids, ethylammonium nitrate and l-n-butyl-3-methylmidazohum (bmim)-based ILs, were selected considering the differences in their hydrogen-bond donor acidity. The molecular solvents chosen were aprotic polar (acetonitrile, dimethylsulphoxide and MA(-dimethylformide) and protic (different alcohols). The empirical solvatochromic parameters n, a and P were employed in order to analyse the behaviour of each binary solvent system. The study focuses on the identification of solvent mixtures of relevant solvating properties to propose them as new solvents . Kinetic study of aromatic nucleophilic substitution reactions carried out in this type of solvent systems is also presented. On the other hand, this is considered as a new approach on protic ionic liquids. Ethylammonium nitrate can act as both Bronsted acid and/or nucleophile. Two reactions (aromatic nucleophilic substitution and nncleophilic addition to aromatic aldehydes) were considered as model reactions. 

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). 

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