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Correlation functions and transport coefficients of self-diffusion and shearviscosity of a binary Lennard-Jones mixture with components differing only intheir particle mass are studied up to high values of the mass ratio $\mu$,including the limiting case $\mu=\infty$, for different mole fractions $x$.Within a large range of $x$ and $\mu$ the product of the diffusion coefficientof the heavy species $D_{2}$ and the total shear viscosity of the mixture$\eta_{m}$ is found to remain constant, obeying a generalized Stokes-Einsteinrelation. At high liquid density, large mass ratios lead to a pronounced cageeffect that is observable in the mean square displacement, the velocityautocorrelation function and the van Hove correlation function.

Concentration and mass dependence of transport coefficients and correlation functions in binary mixtures with high mass-asymmetry