Fig. 1.

a Representative snapshots from MD simulation of IL/water mixtures at low (30 IL ion pair) and high (200 IL ion pair) concentration in the top and bottom panel, respectively. The systems shown here are (left) [C₄mim]⁺ which does not show aggregation at both low and high concentration, (middle) [C₈mim]⁺ which remains as monomers at low concentrations and aggregate at higher concentrations, and (right) [C₁₂mim]⁺ which can be seen to aggregate at both low and high concentrations. b The aggregated forms of [C₈mim]⁺and [C₁₂mim]⁺cations. The orange color represents the tail of the cations, red color represents the head of the cations and water is represented in blue color. Reprinted with permission from Vicent-Luna et al. 2017. Copyright 2017 American Chemical Society