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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 structureand (b–f) STM micrographs of translationalmotion of a four-wheeled “nanocar” on an Au(111) surfaceat 200 °C. Wheels are shown by yellow spots, and the path ishighlighted with a white arrow. Reprinted with permission from ref (1129). Copyright 2005 AmericanChemical Society.
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fig38: (a) Chemical structureand (b–f) STM micrographs of translationalmotion of a four-wheeled “nanocar” on an Au(111) surfaceat 200 °C. Wheels are shown by yellow spots, and the path ishighlighted with a white arrow. Reprinted with permission from ref (1129). Copyright 2005 AmericanChemical Society.

Mentions: In a four-wheeled “nanocar”with fullerene wheels,thermally induced translational motion on a Au(111) surface was observed(Figure 38).1129 Directional motion perpendicular to the axlesof the molecule suggested that the observed movement was generatedby rolling of the fullerene wheels rather than sliding of the entiremolecule on the surface. In addition to thermal activation, an STMtip could be used to drive the motion. Pivoting also took place, clearlyvisible as small-angle perturbations to the path of translation inthe STM images (Figure 38e,f). In a structurally related three-wheeled molecule, pivotingwas observed to be the dominant motion on the surface, suggestingthat the four-wheeled molecular structure was important for a rollingtranslational motion. Similar examples of four- and three-wheeledfluorescent molecules with different wheel sizes (adamantane and p-carboranes as wheels) have been reported, and their diffusionconstants on glass surfaces were determined by fluorescence measurement.1130,1131 The photoisomerization kinetics of a similar four-wheeled moleculefunctionalized with a rotary motor have also been investigated.1132 When fullerene wheels were used no photoisomerizationtook place, whereas with carborane wheels, efficient isomerizationwas observed in solution.


Artificial Molecular Machines.

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

(a) Chemical structureand (b–f) STM micrographs of translationalmotion of a four-wheeled “nanocar” on an Au(111) surfaceat 200 °C. Wheels are shown by yellow spots, and the path ishighlighted with a white arrow. Reprinted with permission from ref (1129). Copyright 2005 AmericanChemical Society.
© Copyright Policy
Related In: Results  -  Collection

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

fig38: (a) Chemical structureand (b–f) STM micrographs of translationalmotion of a four-wheeled “nanocar” on an Au(111) surfaceat 200 °C. Wheels are shown by yellow spots, and the path ishighlighted with a white arrow. Reprinted with permission from ref (1129). Copyright 2005 AmericanChemical Society.
Mentions: In a four-wheeled “nanocar”with fullerene wheels,thermally induced translational motion on a Au(111) surface was observed(Figure 38).1129 Directional motion perpendicular to the axlesof the molecule suggested that the observed movement was generatedby rolling of the fullerene wheels rather than sliding of the entiremolecule on the surface. In addition to thermal activation, an STMtip could be used to drive the motion. Pivoting also took place, clearlyvisible as small-angle perturbations to the path of translation inthe STM images (Figure 38e,f). In a structurally related three-wheeled molecule, pivotingwas observed to be the dominant motion on the surface, suggestingthat the four-wheeled molecular structure was important for a rollingtranslational motion. Similar examples of four- and three-wheeledfluorescent molecules with different wheel sizes (adamantane and p-carboranes as wheels) have been reported, and their diffusionconstants on glass surfaces were determined by fluorescence measurement.1130,1131 The photoisomerization kinetics of a similar four-wheeled moleculefunctionalized with a rotary motor have also been investigated.1132 When fullerene wheels were used no photoisomerizationtook place, whereas with carborane wheels, efficient isomerizationwas observed in solution.

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.


Related in: MedlinePlus