Applying this same approach to UMCM-1 we obtain the pore environments found in this material (Fig. ). For this material, p1 and p2 are smaller than DUT-32 but similarly p2 has the face of the ligands arranged toward the centre of pore volume and available for adsorption. Ligand faces evidently are excellent adsorption sites as this is also observed to provide a preferential adsorption site leading to more adsorption, at low pressure, occurring in p2 than p1. The initial pore filling step (point three) in UMCM-1 is again related to a drastic increase in all of the pores and evidently filling the smallest pores (p1 and p2). The second pore filling step here follows a different process to DUT-32, adsorbates are found to increase in population at the pore wall as the pressure increases. The adsorbed phase does not grow significantly toward the centre of the pore until after the step in the isotherm when this pore becomes filled drastically. This difference in adsorbed phase is likely related to the different nature of the mesopores in DUT-32 and UMCM-1. In DUT-32 the mesopore is a connected cage and in UMCM-1 the mesopore is a one-dimensional channel. The different behaviour suggests that a channel structure will have a greater delay in pore filling demonstrating the expected delayed onset of adsorption observed for commonly reported mesoporous materials.