One of the first theories of ionic liquids (ILs), which takes into account both long-range electrostatic and van der Waals interactions between the ions, has been developed in our group [1-5].

We have explained extra solvent power of some of the ILs in comparison with nonionic liquids [1].

Other predicted effect, which found experimental confirmation, was the decrease of the surface tension at the boundary of ionic and non-ionic liquids [2]. We also demonstrated that the surface tension coefficient can become negative under certain conditions [3]. It means that the coexistence of the macroscopic phases is unstable and formation of clusters of IL in non-ionic liquid (and vice versa) is more favorable [3]. These predictions were confirmed in computer simulations.