Foldamer-tuned switching kinetics and metastability of [2]rotaxanes.

Angew Chem Int Ed Engl

State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, China.

Published: October 2011

Slip sliding away: foldamers can function as modular stoppers to regulate the slippage and de-slippage of pseudorotaxanes and the switching kinetics and metastability of bistable rotaxanes. By simply changing the solvent or the length of the hydrogen-bonded foldamer, the lifetime of the metastable co-conformation state can be increased dramatically, from several minutes to as long as several days.

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http://dx.doi.org/10.1002/anie.201104099DOI Listing

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