As shown in Figure , the activation energy is correlated with the diffusion coefficient for xenon in MOF nanopores. A stronger correlation is observed for points with a PLD around 4.5 Å, while for PLD values exceeding 6 Å, the correlation appears to be weaker compared to smaller PLD values, as illustrated in Figure . This correlation between the energy barrier and the diffusion coefficient is confirmed in a different visualization in Figure . The points are labeled according to the energy barrier value in a given material, and the highest energy barrier points tend to be concentrated among lower diffusion coefficient values. However, a few points with very high energy barriers are also observed for diffusion coefficients that are quite low.