Stokes shift dynamics of [Na][TOTO] - A new class of ionic liquids: A comparative study with more common imidazolium analogs

► Dynamic Stokes shift values for [Na][TOTO] less than those for imidazolium ILs. ► Predicts a very weak temperature dependence for shift. ► Calculated dynamics is extremely slow because of large viscosity. ► Predicts bi-phasic dynamics in accordance with experimental dielectric relaxation. ► Calculations suggest Arrhenius-type temperature dependence.