Switching between supramolecular dimer and nonthreaded supramolecular self-assembly of stilbene amide-alpha-cyclodextrin by photoirradiation.
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.
Yamauchi
Kazuhiro
K
Department of Macromolecular Science, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
Takashima
Yoshinori
Y
Hashidzume
Akihito
A
Yamaguchi
Hiroyasu
H
Harada
Akira
A
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*
D000577:Amides; D013267:Stilbenes; D047391:alpha-Cyclodextrins; C032613:alpha-cyclodextrin