title: Complementary helicity interchange of optically switchable supramolecular-enantiomeric helicenes with (-)-gel-sol-(+)-gel transition ternary logic.
abstract: A gallamide-containing pseudoenantiomeric helicene pair bearing a (10R,11R)-dimethoxymethyldibenzosuberane core can self-assemble by intermolecular amide H-bonding and π-π stacking into bundled helical fibers with helical tunnels of complementary helicity in CH2Cl2. The helicenes undergo excellent complementary photoswitchings of ternary logic at 280, 318, and 343 nm through (-)-gel-sol-(+)-gel interconversion.
authors.affiliation: Department of Chemistry, National Tsing-Hua University, Hsinchu, Taiwan. ctchen@mx.nthu.edu.tw
authors.forename: Chien-Tien
authors.initials: CT
authors.lastname: Chen
authors.forename: Chien-Hsiang
authors.initials: CH
authors.lastname: Chen
authors.forename: Tiow-Gan
authors.initials: TG
authors.lastname: Ong
mesh_terms: D000577:Amides / Q000737:chemistry; D005782:Gels / Q000737:chemistry; D006860:Hydrogen Bonding; D046911:Macromolecular Substances / Q000138:chemical synthesis / Q000737:chemistry; D008752:Methylene Chloride / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D055620:Optical Phenomena; D010316:Particle Size; D013237:Stereoisomerism; D013499:Surface Properties
chemical_list: D000577:Amides; D005782:Gels; D046911:Macromolecular Substances; D008752:Methylene Chloride