Bundle-shaped cyclodextrin-Tb nano-supramolecular assembly mediated by C60: intramolecular energy transfer.
A bundle-shaped nano-supramolecular assembly possessing numerous luminescent cyclodextrin-Tb polyads and photosensitizing C(60) units has been constructed through the end-to-end inclusion complexation of cyclodextrin cavities with C(60)s, and its properties have been comprehensively characterized. Further investigations on the luminescence properties of the cyclodextrin-Tb polyad and the bundle-shaped assembly demonstrate that a pyridine --> Tb --> C(60) intramolecular energy transfer process is operative when a solution of the assembly is exposed to UV light.
Liu
Yu
Y
Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China. yuliu@nankai.edu.cn
Chen
Guo-Song
GS
Chen
Yong
Y
Zhang
Ning
N
Chen
Jing
J
Zhao
Yan-Li
YL
D003460:Crystallization / Q000379:methods*; D003505:Cyclodextrins / Q000737:chemistry* / Q000528:radiation effects; D037741:Fullerenes / Q000737:chemistry*; D008163:Luminescent Measurements; D046911:Macromolecular Substances / Q000737:chemistry / Q000528:radiation effects; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure; D013725:Terbium / Q000737:chemistry* / Q000528:radiation effects; D014466:Ultraviolet Rays
D003505:Cyclodextrins; D037741:Fullerenes; D046911:Macromolecular Substances; D013725:Terbium; C069837:fullerene C60