Optically Functionalized Grid-Type Complexes by a Post-Assembly Strategy.

Bisterpyridine-based grid complexes can serve as supramolecular three-dimensional scaffolds for the construction of larger molecular assemblies. Through functionalization of the ligand with azide groups, followed by self-assembly and metal-free Huisgen reactions, eight pyrene molecules can be attached to the grid structure in a single reaction step. The orientation and proximity provided by the scaffold allows for tuning the fluorescence properties of the dye molecules.