title: Effective enlargement of fluorescence resonance energy transfer of poly-porphyrin mediated by beta-cyclodextrin dimers.
abstract: 4,4-Difluoro-4-bora-3a,4a-diaza-s-indacene bridged bis(permethyl-beta-cyclodextrins) 1 was synthesized successfully through click chemistry, and it forms a well-defined linear assembly with 5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrin 2 via extremely strong host-guest interactions, which was identified by the methods of UV-vis, NMR, AFM, and TEM, respectively. Furthermore, the fluorescence resonance energy transfer from host spacer to porphyrin guest was investigated, showing that the energy transfer quantum yield is high to 94% in virtue of such a noncovalent path.
authors.affiliation: Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, People's Republic of China.
authors.forename: Zhuo-Yi
authors.initials: ZY
authors.lastname: Gu
authors.forename: Dong-Sheng
authors.initials: DS
authors.lastname: Guo
authors.forename: Mo
authors.initials: M
authors.lastname: Sun
authors.forename: Yu
authors.initials: Y
authors.lastname: Liu