Supramolecular polymer has been received much attention due to remarkable structural properties and functions as materials. We synthesized a new type of zinc porphyrin tripod prepared by Cu(I)-catalyzed click reaction and characterized by 1H NMR, and MALDI-TOF-MS analysis.
We investigated reversible Soret and Q band shift behaviors in toluene upon heating and cooling processes. On the other hand, tripod porphyrin in THF or demetallized tripod compound did not exhibit any notable phenomenon upon thermal stimulus. The tripod compound showed toroidal structures on HOPG substrate. Finally, we applied this system to isodesmic aggregation model driven by metal coordination with triazole moieties.
The tripod formed 2:3 host-guest complex with 4,4’-bipyridyl, and it was confirmed by spectroscopic titration. The detailed aspect of the metal-coordination system of porphyrin tripod will be reported in the conference.