In the area of metal-organic porous materials, supramolecular metal-organic frameworks (SMOFs) constitute a blooming alternative. Their examples are still scarce when compared to MOFs (metal-organic frameworks), and there is not any study dealing with the crystallographic location of adsorbate molecules within the porous structure. In this proposal we aim to explore a family of SMOFs sustained by pi-pi; stacking interactions that are based on the assembly of wheel-shaped heptanuclear [Cu7(mu-H2O)6(mu-OH)6(mu-adeninato)6]2+ entities. These compounds experience expansion/contraction processes when exposed to different solvent molecules. Thus, we aim to analyse the flexibility of these structures when exposed to certain adsorbates (such as CO2 or H2O), in order to understand the structural changes taking place on SMOFs during the host-guest interaction (i.e. SMOF•••CO2/H2O).