title: Columnarly assembled liquid-crystalline peptidic macrocycles unidirectionally orientable over a large area by an electric field.
abstract: Being inspired by naturally occurring peptidic macrocycles, we developed liquid-crystalline (LC) compounds 1 and 2 that are capable of self-assembling into hexagonal columnar mesophases over a wide temperature range that includes room temperature. Their bowl-shaped macrocyclic cores are conformationally robust because of the presence of internal H-bonds, while the columnar assembly is ensured by intermolecular H-bonding interactions involving the exocyclic amide units. When an electric field was applied to their LC films from a direction orthogonal to the film plane, the columns were oriented homeotropically over a large area.
authors.affiliation: Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Japan.
authors.forename: Kohei
authors.initials: K
authors.lastname: Sato
authors.forename: Yoshimitsu
authors.initials: Y
authors.lastname: Itoh
authors.forename: Takuzo
authors.initials: T
authors.lastname: Aida
mesh_terms: D004560:Electricity; D050866:Liquid Crystals / Q000737:chemistry*; D047028:Macrocyclic Compounds / Q000737:chemistry*; D008958:Models, Molecular; D010455:Peptides / Q000737:chemistry*; D013696:Temperature
chemical_list: D047028:Macrocyclic Compounds; D010455:Peptides