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À propos de : A Generic Basis for Some Simple Light-Operated Mechanical MolecularMachines        

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  • A Generic Basis for Some Simple Light-Operated Mechanical MolecularMachines
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  • A novel type of mechanical switch is described in which light-induced translation of a macrocycle in a [2]rotaxane quenches anthracene fluorescence. Features of the system include the remarkable 200:1 difference in fluorescence intensity between the two positional states of the molecule (∼85:1 between one isomer and the photostationary state). In principle the same concept could be used for mechanically switching virtually any property that can be influenced by functional group proximity effects.
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