One area of particular interest is the assembly of these capsules in apolar organic solvents, as this has been shown to yield particularly stable and well-defined structures. Resorcinarenes and pyrogallolarenes have emerged as particularly promising building blocks for the construction of these capsules, due to their ability to build large hexameric structures through the formation of a network of multiple hydrogen bonds. The main difference between the two types of structures is the presence of water molecules at capusles' intersections among resorcinarene units which coordinate monomer interaction. Conversely, the presence of a further alcohol functional group in the pyrogallol moiety of the pyrogallolarene prevents the inclusion of water molecules in the hexamer. This gives rise to different assembly properties and has a large impact on the assembly, encapsulation, and catalytic performances of the material.