To characterise the pore behaviour of MOFs within this study, the pywindow python package was used to calculate the pore-limiting diameter (PLD) and largest cavity diameter (LCD) of the pores. 135 Linker chemical structure and pore/window diameter are shown in Figure . As framework atomic positions were considered rigid, n-propoxy-substituted IRMOF-4 had significantly reduced interconnectivity between pore spaces compared to IRMOF-1, and n-pentoxy-substituted IRMOF-5 had no measurable pore interconnectivity. Although no longer representative of the real-world system, simulations on these frameworks provide a useful hypothetical example for the case of highly 140 isolated pores with no inter-connectivity.