To investigate the influence of the counterion on CV in a nonpolar solvent, three individual MD simulations are performed for the chromophore in toluene. All three trajectories are initialized in the identical contact ion pair configuration, but have different solvent configurations. We find that all three trajectories reach the same steadystate counterion configuration after different equilibration times (see Fig. ), meaning that solvent-induced disorder has only a limited influence on CV-ion configurations. Since all trajectories reach the same steady state, we focus on only a single trajectory with the fastest equilibration time for the chloride ion to compute optical spectra in the cumulant approach.