Dynamic Covalently Bonded Rotaxanes Cross‐Linked by Imine Bonds between the Axle and Ring: Inverse Temperature Dependence of Subunit Mobility

Abstract

Building bridges: Imine bridges between the axle and ring components in rotaxanes allow simple rotaxane synthesis and a novel method for motion control to be developed. The submolecular mobility in this rotaxane-type assembly is regulated by the imine-bond formation/cleavage (see scheme). The relative abundance of the [2]rotaxane increases with decreasing temperature under dynamic equilibrium conditions. Supporting information for this article is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2006/z600750_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.