Hierarchical organization of spherical assembly with reversibly photocontrollable cross-links.

TitleHierarchical organization of spherical assembly with reversibly photocontrollable cross-links.
Publication TypeJournal Article
Year of Publication2013
AuthorsLi Z-Q, Zhang Y-M, Chen H-Z, Zhao J, Liu Y
JournalThe Journal of organic chemistry
Volume78
Issue10
Pagination5110-4
Date Published2013 May 17
Abstract

A ternary photocontrollable assembly was hierarchically constructed by the "orthogonal" host-guest interaction of different types of cyclodextrins toward the porphyrin and azobenzene. Spectroscopic titrations and microscopic investigations demonstrate that the inclusion complex of azobenzene modified water-soluble porphyrin (1) with phthalocyanine-grafted permethyl β-cyclodextrins (2) could be reversibly cross-linked to relatively larger nanospheres with naphthyl bridged bis(α-cyclodextrin)s (3). Moreover, the large-sized spheres (1·2·3) could be disassembled and switched to small-sized complex (1·2) upon the photoinduced isomerization of an azophenyl group.

DOI10.1002/asia.201301040
Alternate JournalJ. Org. Chem.