Issue 10, 2021

Dynamics of mechanically bonded macrocycles in radial hetero[4]catenane isomers

Abstract

Radial [4]catenane isomers in which the dynamics of the interlocked macrocycles are encoded by the covalent structure of the central macrocyclic backbone are described. Shuttling motion of the interlocked β-cyclodextrin was found to be dependent on both the position and interaction strength of the interlocked cucurbit[6]urils on the central macrocycle. This work demonstrates that the dynamics of different mechanically bonded macrocycles in a hetero[n]catenane can be coordinated complementarily, suggesting the possible exploitation of higher-order [n]catenanes as the next level molecular machines in which more complex tasks can be performed with sophisticated intramolecular motions.

Graphical abstract: Dynamics of mechanically bonded macrocycles in radial hetero[4]catenane isomers

Supplementary files

Article information

Article type
Research Article
Submitted
07 jan 2021
Accepted
05 mar 2021
First published
16 mar 2021

Org. Chem. Front., 2021,8, 2182-2189

Dynamics of mechanically bonded macrocycles in radial hetero[4]catenane isomers

A. W. H. Ng, Y. H. Leung and H. Y. Au-Yeung, Org. Chem. Front., 2021, 8, 2182 DOI: 10.1039/D0QO01658F

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