“…The dynamic nature of many transition metal–ligand interactions, characterized by precise geometry and directionality, combined with a polytopic ligand structure, allow us to design and self-assemble a plethora of compounds with different shapes, sizes, and properties. Embedded functions, depending on either individual building blocks or their synergistic interaction, − may involve host–guest interactions, − photoswitching, , chirality, − chromophore effects, − or catalysis, − just to name a few.…”