In the quest for new materials with excellent properties for specific applications, scientists have developed various synthesis strategies over the years, which have given them increasingly precise control over the process and, consequently, over its outcome. In reticular chemistry, specifically designed molecular building blocks are used to create new porous crystal structures, whose properties are strongly related to the periodic arrangement of those basic components. These so-called reticular materials include metal-organic frameworks (MOFs), covalent-organic frameworks (COFs) and metal-organic polyhedra (MOPs).