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  • Title: Parking and restarting a molecular shuttle in situ.
    Author: Chen NC, Lai CC, Liu YH, Peng SM, Chiu SH.
    Journal: Chemistry; 2008; 14(9):2904-8. PubMed ID: 18213659.
    Abstract:
    Herein we report an easy-to-synthesize [2]rotaxane, which incorporates two ionic monopyridinium stations and one 2,2'-bipyridine station as the shaft of the dumbbell-shaped component and a bis-p-xylyl[26]crown-6 (BPX26C6) unit as the macrocyclic component. In this molecular shuttle, the BPX26C6 unit can be docked selectively on either the central 2,2'-bipyridine station or one of the two terminal pyridinium stations, and subsequently, returned to its shuttling molecular motion through the in situ addition of simple reagents (acid/base or metal ion/metal-ion-complexing ligand pairs).
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