Hydrogen bond-directed supramolecular polymorphism leading to soft and hard molecular ordering
Takumi Aizawa, Keisuke Aratsu, Sougata Datta, Takaki Mashimo, Tomohiro Seki, Takashi Kajitani, Fabien Silly, Shiki Yagai
Abstract
Transformation of metastable supramolecular stacks of hydrogen-bonded rosettes composed of an ester-containing barbiturated naphthalene into crystalline nanosheets occurs through the rearrangement of hydrogen-bonding patterns. The involvement of the ester group in the crystalline hydrogen-bonded pattern is demonstrated, guiding us to a new molecular design that can afford supramolecular polymorphs with soft and hard molecular packing.
Topics & Concepts
Supramolecular chemistryHydrogen bondMetastabilityPolymorphism (computer science)CrystallographySupramolecular polymersMaterials scienceHydrogenNaphthaleneChemistryMoleculeCrystal structureOrganic chemistryBiochemistryGenotypeGeneSupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applicationsSupramolecular Chemistry and Complexes