This typical behaviour of one-dimensional mesopores is also evident in the same analysis applied to NU-1000 (Supplementary Figure ). Once again the adsorption in the small pores happens together at low pressure with distributions within the pores appearing filled at ≈ 1 × 10 -3 bar. At this point is it clear how little adsorption is present in the largest pore with small populations observed at the pore wall. After this point the amount adsorbed slowly grows at the wall and also into the pore with distinct peaks in structure observed when saturated suggesting a well defined radial pattern of the saturated phase. Upon complete pore filling at 1 bar there are subtle variations in the distributions of adsorbates in the p2 pore but no drastic changes, related to adsorbate migration, observed for NU-1000 or any of the materials examined in this work. The above analysis of these three materials demonstrates that the pore-centred radial adsorption distribution is a useful tool for comparing between these hierarchical materials, identifying pore filling mechanisms that occur cooperatively and trigger further adsorption in the material.