Figure 5

Limiting high – frequency permittivity, (○) ε_∞, static dielectric constant, (●) ε_s, relaxation time, (■) τ _D , obtained from the fit of experimental dielectric spectra according to a single Debye process and () g, Kirkwood correlation factor for MB at different temperatures. Continuous lines are plotted to show trends. For τ _D continuous line shows the Vogel – Fulcher – Tammann fit (${\tau }_{VFT}^0$ = 5.31 ps, B _VFT = 249.00 K, T₀ = 170.30 K).