Send to

Choose Destination
See comment in PubMed Commons below
J Org Chem. 2013 Jan 18;78(2):590-6. doi: 10.1021/jo302426c. Epub 2012 Dec 28.

Photodriven clamlike motion in a [3]rotaxane with two [2]rotaxane arms bridged by an overcrowded alkene switch.

Author information

  • 1Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science & Technology, Shanghai 200237, PR China.


A [3]rotaxane with two [2]rotaxane arms bridged by an overcrowded alkene switch has been constructed to perform the clamlike motion in response to light stimulus. We demonstrated that this [3]rotaxane can undergo reversible conformational changes caused by the trans-cis isomerizations of the central double bond with a favorable photostationary state (up to 90% conversion). It has been shown that the clamlike motion causes remarkable UV-vis and fluorescence spectral changes, allowing it to behave as a reversible optical molecular switch.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Chemical Society
    Loading ...
    Write to the Help Desk