Financial support from The Netherlands Organization for Scientific Research (NWO-CW), Zernike Institute for Advanced Materials, and the University of Groningen is gratefully acknowledged. We thank Dr. T. Sasaki and Mr. G. London for helpful discussions.
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Communication
Controlling Molecular Rotary Motion with a Self-Complexing Lock†
Article first published online: 28 DEC 2009
DOI: 10.1002/anie.200906064
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Qu, D.-H. and Feringa, B. (2010), Controlling Molecular Rotary Motion with a Self-Complexing Lock. Angewandte Chemie International Edition, 49: 1107–1110. doi: 10.1002/anie.200906064
- †
Publication History
- Issue published online: 26 JAN 2010
- Article first published online: 28 DEC 2009
- Manuscript Received: 28 OCT 2009
Funded by
- The Netherlands Organization for Scientific Research (NWO-CW)
Keywords:
- molecular devices;
- molecular motors;
- photochemistry;
- protonation;
- self-complexation
Graphical Abstract
The key to motion: A second-generation molecular rotary motor, which contains a DB24C8 macrocycle ring incorporated into the lower stator half and a dialkyl ammonium ion attached to the upper rotor half, forms a [1]pseudorotaxane in less polar solvents such as CH2Cl2. In this self-complexing system, acid–base-controlled threading–dethreading movements can be utilized to unlock or lock the molecular motor (see picture).