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Artificial Molecular Machines.

Erbas-Cakmak S, Leigh DA, McTernan CT, Nussbaumer AL - Chem. Rev. (2015)

View Article: PubMed Central - PubMed

Affiliation: School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom.

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bonded molecules and on catenanes and rotaxanes in which switching of other protic solvents... This effect (listed in descending binding ability) stations on the thread, macrocycle In these systems, fast-responding reporters are preferred... practical applications by utilizing molecular scale changes to create macroscopic effects... The thread of these rotaxanes included an anthracene fluorophore similar application in synthetic polymers often furnishes a useful result... of Brownian motion can be exploited to great effect in the synthesis every aspect of functional molecule and materials design... An improved robotics” in which ratcheted motions of molecular components

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(a) Chemical structure of a rotary motorwith the groups responsiblefor double-bond isomerization (red) and helix inversion (blue) highlighted.(b) Schematic representation of a full 360° rotation with sequentialdouble-bond isomerization and helix inversion (hexyl substituentsare omitted for clarity). (c) Schematic representation of electrontunneling exciting the molecule and inducing translational motionon the surface. (d) Cartoon representation of the motion. Reprintedwith permission from ref (1135). Copyright 2011 Nature Publishing Group.
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fig40: (a) Chemical structure of a rotary motorwith the groups responsiblefor double-bond isomerization (red) and helix inversion (blue) highlighted.(b) Schematic representation of a full 360° rotation with sequentialdouble-bond isomerization and helix inversion (hexyl substituentsare omitted for clarity). (c) Schematic representation of electrontunneling exciting the molecule and inducing translational motionon the surface. (d) Cartoon representation of the motion. Reprintedwith permission from ref (1135). Copyright 2011 Nature Publishing Group.

Mentions: Directional rotary motors undergoing well-definedstructural and/orchemical changes on the application of an external stimuli were discussedin section 5. Feringaet al. developed a system utilizing paddle-wheel type directionalmotion over a Cu(111) surface upon sequential electronic and vibrationalexcitation (Figure 40).1135 Electron tunneling induced by aSTM tip stimulated double bond isomerization, which was followed byhelicity inversion. These sequential configurational and conformationalchanges in the molecule propelled it across the surface. For the moleculeto move on the surface linearly, the four rotary wheels had to rotatein the same direction upon application of the voltage. This is onlypossible when the molecule was attached to the surface as the meso-(R,S–R,S) isomer. In other isomers, a lack ofcoherent rotation prevented translational motion or induced spinning.


Artificial Molecular Machines.

Erbas-Cakmak S, Leigh DA, McTernan CT, Nussbaumer AL - Chem. Rev. (2015)

(a) Chemical structure of a rotary motorwith the groups responsiblefor double-bond isomerization (red) and helix inversion (blue) highlighted.(b) Schematic representation of a full 360° rotation with sequentialdouble-bond isomerization and helix inversion (hexyl substituentsare omitted for clarity). (c) Schematic representation of electrontunneling exciting the molecule and inducing translational motionon the surface. (d) Cartoon representation of the motion. Reprintedwith permission from ref (1135). Copyright 2011 Nature Publishing Group.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4585175&req=5

fig40: (a) Chemical structure of a rotary motorwith the groups responsiblefor double-bond isomerization (red) and helix inversion (blue) highlighted.(b) Schematic representation of a full 360° rotation with sequentialdouble-bond isomerization and helix inversion (hexyl substituentsare omitted for clarity). (c) Schematic representation of electrontunneling exciting the molecule and inducing translational motionon the surface. (d) Cartoon representation of the motion. Reprintedwith permission from ref (1135). Copyright 2011 Nature Publishing Group.
Mentions: Directional rotary motors undergoing well-definedstructural and/orchemical changes on the application of an external stimuli were discussedin section 5. Feringaet al. developed a system utilizing paddle-wheel type directionalmotion over a Cu(111) surface upon sequential electronic and vibrationalexcitation (Figure 40).1135 Electron tunneling induced by aSTM tip stimulated double bond isomerization, which was followed byhelicity inversion. These sequential configurational and conformationalchanges in the molecule propelled it across the surface. For the moleculeto move on the surface linearly, the four rotary wheels had to rotatein the same direction upon application of the voltage. This is onlypossible when the molecule was attached to the surface as the meso-(R,S–R,S) isomer. In other isomers, a lack ofcoherent rotation prevented translational motion or induced spinning.

View Article: PubMed Central - PubMed

Affiliation: School of Chemistry, University of Manchester , Oxford Road, Manchester M13 9PL, United Kingdom.

AUTOMATICALLY GENERATED EXCERPT
Please rate it.

bonded molecules and on catenanes and rotaxanes in which switching of other protic solvents... This effect (listed in descending binding ability) stations on the thread, macrocycle In these systems, fast-responding reporters are preferred... practical applications by utilizing molecular scale changes to create macroscopic effects... The thread of these rotaxanes included an anthracene fluorophore similar application in synthetic polymers often furnishes a useful result... of Brownian motion can be exploited to great effect in the synthesis every aspect of functional molecule and materials design... An improved robotics” in which ratcheted motions of molecular components

No MeSH data available.