Alkyl-Substituted Cucurbit[6]uril Bridged β-Cyclodextrin Dimer Mediated Intramolecular FRET Behavior
Fang‐Fang Shen, Ying‐Ming Zhang, Xianyin Dai, Haoyang Zhang, Yu Liu
Abstract
A novel triazolyl bridged cucurbituril (CB)-cyclodextrin (CD) dimer was synthesized via click reaction of monopropargyl modified octamethylcucurbit[6]uril and mono-6-azido-β-cyclodextrin. Moreover, it could form stable supramolecular inclusion complexes possessing efficient fluorescence resonance energy transfer, which benefited from the fact that CD and CB can bind amantadine- and pyridinium-containing fluorophores simultaneously. The supramolecular inclusion complex behaviors were investigated by NMR spectroscopy, UV-vis absorption, and fluorescence spectroscopy.
Topics & Concepts
ChemistrySupramolecular chemistryDimerCyclodextrinPyridiniumIntramolecular forceCucurbiturilFörster resonance energy transferFluorescenceSupramolecular assemblyFluorescence spectroscopyNuclear magnetic resonance spectroscopyAlkylPhotochemistryClick chemistryStereochemistryPolymer chemistryMoleculeMedicinal chemistryOrganic chemistryPhysicsQuantum mechanicsSupramolecular Chemistry and ComplexesLuminescence and Fluorescent MaterialsCrystallography and molecular interactions