Fig. 3: Reduced viscosity and A-particle diffusion coefficient as a function of S_ex for all mixtures and compositions.

A quasiuniversal curve is observed in both cases with excess entropy. The black dashed lines give Rosenfeld single-component quasiuniversality Eq. (1). a Reduced viscosity \(\widetilde{\eta }\) as a function of S_ex. b Reduced A-particle diffusion coefficient \({\widetilde{D}}_{{\rm{A}}}\) as a function of S_ex. The grey data points (DB, data taken from ref. ²⁶) give reference data for an almost sphere-like dumbbell molecule that is easily supercooled; in this case no quasiuniversality is found. In comparison, the observed deviations between the different binary mixture data are relatively small.