Self-promoted post-synthetic modification of metal-ligand M(2)L(3) mesocates.

Reactive alcohol functionality has been incorporated into a self-assembled M2L3 mesocate. Post-synthetic modification of this complex with suitable isocyanates is not only possible, but is self-catalyzed by multiple internal hydrogen bonds from the self-assembly. As the metal-ligand coordination is reversible at elevated temperature, the isomeric distribution of product changes upon reaction, due to the different steric bulk conferred on the assembly after the modification.