title: Switching between supramolecular dimer and nonthreaded supramolecular self-assembly of stilbene amide-alpha-cyclodextrin by photoirradiation.
abstract: 3-trans-Stilbene amide-alpha-cyclodextrin (3-trans-Sti-alpha-CD) formed a double-threaded dimer in aqueous solutions. In contrast, the photoisomerization of the stilbene moiety in 3-Sti-alpha-CD from trans to cis leads to the structural changes from the double-threaded dimer to nonthreaded supramolecular assemblies in aqueous solutions. The structures of these supramolecular complexes have been found to be controllable by photoirradiation.
authors.affiliation: Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
authors.forename: Kazuhiro
authors.initials: K
authors.lastname: Yamauchi
authors.forename: Yoshinori
authors.initials: Y
authors.lastname: Takashima
authors.forename: Akihito
authors.initials: A
authors.lastname: Hashidzume
authors.forename: Hiroyasu
authors.initials: H
authors.lastname: Yamaguchi
authors.forename: Akira
authors.initials: A
authors.lastname: Harada
mesh_terms: D000577:Amides / Q000737:chemistry*; D018360:Crystallography, X-Ray; D019281:Dimerization; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D008958:Models, Molecular; D015394:Molecular Structure; D010777:Photochemistry; D013267:Stilbenes / Q000737:chemistry*; D047391:alpha-Cyclodextrins / Q000737:chemistry*
chemical_list: D000577:Amides; D013267:Stilbenes; D047391:alpha-Cyclodextrins; C032613:alpha-cyclodextrin