title: Photoinduced electron transfer in a supramolecular species building of mono-6-p-nitrobenzoyl-beta-cyclodextrin with naphthalene derivatives.
abstract: Photoinduced electron transfer was observed in the supramolecular complexes of p-nitrobenzoyl-beta-cyclodextrin (NBCD) with a number of naphthalene derivatives, which were stabilized clearly via hydrophobic interactions in aqueous solution. Both steady-state and time-resolved fluorescence measurements were conducted, which revealed that there were two routes of electron transfer, i.e., electron transfer between the free donor and free acceptor in solution and electron transfer between the donor and acceptor bound in a supramolecular assembly. The evidence collected demonstrates that the latter route was very efficient. As a result, the rate and quantum yield of the fluorescence quenching in the present supramolecular system were appreciably large.
authors.affiliation: Department of Chemistry, University of Science and Technology of China, Hefei 230026, China.
authors.forename: Yong-Hui
authors.initials: YH
authors.lastname: Wang
authors.forename: Hai-Ming
authors.initials: HM
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Liu
authors.forename: Zhao-Xun
authors.initials: ZX
authors.lastname: Liang
authors.forename: Qing-Xiang
authors.initials: QX
authors.lastname: Guo
authors.forename: Chen-Ho
authors.initials: CH
authors.lastname: Tung
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Inoue
authors.forename: You-Cheng
authors.initials: YC
authors.lastname: Liu
mesh_terms: D003505:Cyclodextrins / Q000138:chemical synthesis* / Q000737:chemistry*; D003912:Dextrins / Q000138:chemical synthesis* / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods; D009682:Magnetic Resonance Spectroscopy; D008956:Models, Chemical; D008968:Molecular Conformation; D015394:Molecular Structure; D009281:Naphthalenes / Q000138:chemical synthesis* / Q000737:chemistry*; D010777:Photochemistry / Q000379:methods; D013050:Spectrometry, Fluorescence; D013237:Stereoisomerism; D013997:Time Factors; D047392:beta-Cyclodextrins
chemical_list: D003505:Cyclodextrins; D003912:Dextrins; D009281:Naphthalenes; D047392:beta-Cyclodextrins; C461899:p-nitrobenzoyl-beta-cyclodextrin