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Issue 4, 2014
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Tristable [n]rotaxanes: from molecular shuttle to molecular cable car

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Abstract

New tristable [n]rotaxanes (n = 2, 3, 4) were developed based on host–guest interactions, featuring pyromellitic diimide (PmI), anthraquinone (AQ) and N-methyltriazolium (MtA) units as the three kinds of recognition sites and triptycene-derived macrocycle(s) as the moveable part. In the [2]rotaxane molecular shuttle, the states of the macrocycle on different sites can be reversibly and controllably switched using chemical stimuli. The controllable motion mode of the [2]rotaxane molecular shuttle can be extended to its analogous oligorotaxanes, thus creating synchronous behavior for the macrocycles and producing an original visual prototype of artificial molecular machines (AMMs)—molecular cable car.

Graphical abstract: Tristable [n]rotaxanes: from molecular shuttle to molecular cable car

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Publication details

The article was received on 02 Dec 2013, accepted on 17 Dec 2013 and first published on 20 Dec 2013


Article type: Edge Article
DOI: 10.1039/C3SC53295J
Citation: Chem. Sci., 2014,5, 1520-1525
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    Tristable [n]rotaxanes: from molecular shuttle to molecular cable car

    Z. Meng, J. Xiang and C. Chen, Chem. Sci., 2014, 5, 1520
    DOI: 10.1039/C3SC53295J

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