Generally changing the size of the linker to a longer linker will enlarge the void space of the pore. The histogram will consist of the same components, only the positions of each bar will be shifted. Each individual FG-FG distance is affected to a different extent by enlarging the pore (i.e. isotropic expansion of the pore does not result in even expansion of all FG-FG distances). Figure shows 𝑇 𝑒𝑡 6 𝐷𝑖 12 using linker bdc, and Figure shows 𝑇 𝑒𝑡 6 𝐷𝑖 12 using linker pbdc, the pair distances shown in green lines are the same for the two pores, however the yellow line is shifted from 6.3Å to 10.7Å. As a consequence of these different rates of distance expansion, it is possible that several FG-FG distances may merge (i.e. overlap in the histogram), or conversely, one FG-FG distance may split into several distinct distances. In this work, these effects are not seen, because the pore structures constructed using the stk program maintain the point group of the shape, thus although a substitution of a longer linker is performed, the nodes adjust to a size where the resulting structure always has the same aspect ratio. In practice, however, we expect that FG-FG distances may merge or split. An example of where this would be expected to occur is in the 𝑇 𝑟𝑖 2 4 𝐷𝑖 6 pore topology, when the pore structure is constructed from a fixed size node and a variable size linker. Figure shows the pore structure using bdc linker, the green and the red line are at the same distance. When the linker is substituted with pbdc, the red line will expand, while the green line will remain the same, as shown in Figure . Thus the corresponding bar in the histogram will split into two.