where ⟨r 2 ⟩ is the ensemble mean-squared displacement, n is the dimensionality (1 for a, b, & c diffusion and 3 for combined abc diffusion), and ∆t is the time interval. The ballistic regime at small values of ∆t is unsuitable for calculating diffusion coefficients using the Einstein relation. Diffusion coefficients are therefore cal-culated from the linear region, where the MSD is in the diffusive regime. MSD plots can be found in the ESI. 3 Results and Discussion