| Reversing the direction in a light-driven rotary molecular motor. | |
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MedLine Citation:
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PMID: 21160518 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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Biological rotary motors can alter their mechanical function by changing the direction of rotary motion. Achieving a similar reversal of direction of rotation in artificial molecular motors presents a fundamental stereochemical challenge: how to change from clockwise to anticlockwise motion without compromising the autonomous unidirectional rotary behaviour of the system. A new molecular motor with multilevel control of rotary motion is reported here, in which the direction of light-powered rotation can be reversed by base-catalysed epimerization. The key steps are deprotonation and reprotonation of the photochemically generated less-stable isomers during the 360° unidirectional rotary cycle, with complete inversion of the configuration at the stereogenic centre. The ability to change directionality is an essential step towards mechanical molecular systems with adaptive functional behaviour. |
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Authors:
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Nopporn Ruangsupapichat; Michael M Pollard; Syuzanna R Harutyunyan; Ben L Feringa |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-10-31 |
Journal Detail:
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Title: Nature chemistry Volume: 3 ISSN: 1755-4349 ISO Abbreviation: Nat Chem Publication Date: 2011 Jan |
Date Detail:
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Created Date: 2010-12-16 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101499734 Medline TA: Nat Chem Country: England |
Other Details:
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Languages: eng Pagination: 53-60 Citation Subset: IM |
Affiliation:
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Centre for Systems Chemistry, Stratingh Institute for Chemistry and Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747AG, The Netherlands. |
| Data Bank Information | |
Bank Name/Acc. No.:
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PubChem-Substance/99376146; 99376147; 99376148; 99376149; 99376150; 99376151; 99376152; 99376153; 99376154 |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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