Wavy supramolecular polymers formed by hydrogen-bonded rosettes
Kenta Tamaki, Takumi Aizawa, Shiki Yagai
Abstract
A barbiturate-functionalized supramolecular monomer bearing an ester-linked biphenyl and azobenzene π-conjugated core affords wavy supramolecular polymers. The periodic inversion of curvature is due to the conformational rigidity of the monomer and repulsive interactions between rosettes. Photoisomerization of the azobenzene moiety increases the fragility of the main chain without deteriorating its periodic structure.
Topics & Concepts
Supramolecular chemistrySupramolecular polymersPolymerMonomerMaterials scienceHydrogen bondPolymer chemistryHydrogenCrystallographyPolymer scienceChemistryMoleculeCrystal structureComposite materialOrganic chemistrySupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applicationsSupramolecular Chemistry and Complexes