Fig. 1. Histogram comparisons of T_m, Δ_fusH, and Δ_fusS. (A–C) 20 alkali halides¹⁰versus 257 ILs^11,12 and (D–F) 84 imILs versus 12 [C₁mim]X. For [C₁mim]X, this work reported 10 data and the two additional data were taken from the ref. 41 and 42 (Table S3†). Bin widths for the T_m, Δ_fusH, and Δ_fusS histograms were 20 K, 1 kJ mol⁻¹, and 2 J K⁻¹ mol⁻¹, respectively. For ILs and imILs, several data of Δ_fusH and Δ_fusS are out of range of the figures.