Many of the past works found correlation between geometrical (or structural) properties of the MOFs and their robustness. Hence, the initial goal was to find meaningful relationships between the eight geometrical properties calculated from Zeo++ and the likelihood of collapse during solvent removal. In Figure ,b scattered plots are presented for three representative geometrical properties: (1) void fraction, (2) largest cavity diameter, and (3) pore-limiting diameter. However, from the scattered plots, it is difficult to identify differences in the distributions between the activated and the collapsed MOFs based on these geometrical properties. For better interpretation, smoothed histograms of these properties were constructed to have a general outlook on the distribution of the data. As shown in the probability distribution profile on top of Figure , the collapsed MOFs tends to possess a large void fraction. When the results were expressed in term of the largest cavity diameter or the pore limiting dimeter, their histograms did not show clear difference between the two classes (Figure ), implying that the collapsed MOFs cover wide range of pore diameters. In addition, all the geometrical properties were plotted against each other in a scatter matrix, and again the data points were labeled based on their activation status (Figure ). For most of the properties, the probability distributions of the collapsed and activated structures are entangled significantly.