Fig. 5.

Imaginary part of the dilectric spectra of the ${\text{EMIM}}^{+}{\text{CF}}_3{\text{SO}}_3^{-}$/water mixtures: a) dielectric constant ϵ(ω). b) dielectric conductivity ϑ₀(ω). Please note that the y-axis is enlarged in order to distinguish the spectra of different mole fraction x_H2O. c) Overall generalized dielectric constant Σ₀(ω).