The DOI matches its Crossref record; 20 of the 20 references it cites were found in a registry or an index.
Shuttles and Muscles: Linear Molecular Machines Based on Transition Metals
Abstract
Transition-metal-containing rotaxanes can behave as linear motors at the molecular level. The molecules are set into motion either by an electrochemical reaction or using a chemical signal. In a first example, a simple rotaxane is described that consists of a ring threaded by a two-coordination-site axle. The ring contains a bidentate ligand, coordinated to a copper center. The axle incorporates both a bidentate and a terdentate ligand. By oxidizing or reducing the copper center to Cu(II) or Cu(I) respectively, the ring glides from a given position on the axle to another position and vice versa. By generalizing the concept to a rotaxane dimer, whose synthesis involves a quantitative double-threading reaction triggered by copper(I) complexation, a molecular assembly reminiscent of a muscle is constructed. By exchanging the two metal centers of the complex (copper(I)/zinc(II)), a large-amplitude movement is generated, which corresponds to a contraction/stretching process. The copper(I)-containing rotaxane dimer is in a stretched situation (overall length approximately 8 nm), whereas the zinc(II) complexed compound is contracted (length approximately 6.5 nm). The stretching/contraction process is reversible and it is hoped that, in the future, other types of signals can be used (electrochemical or light pulse) to trigger the motion.
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Harada, A., Hashidzume, A., Yamaguchi, H., & Takashima, Y. (2009) · Chemical Reviews · doi:10.1021/cr9000622 · Cited by 892
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Photo- and Redox-Driven Artificial Molecular Motors
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Metadata
- Authors
- Collin, J.-P., Dietrich-Buchecker, C., Gaviña, P., Jimenez-Molero, M. C., & Sauvage, J.-P.
- Venue
- Accounts of Chemical Research
- Publisher
- American Chemical Society (ACS)
- Published
- 2001-04-24
- Volume
- 34
- Issue
- 6
- Pages
- 477-487
- ISSN
- 0001-4842 (ISSN-L)
- 1520-4898
- OpenAlex
- W1965450832
- Cited by
- 697
- References
- 20
- FWCI
- 34.23
- Type
- journal article
- Language
- en
- Open access
- closed
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