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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)Structure of [2]rotaxane 148. (b) Schematic representationof the structural design components used to create the metal–organicframework. (c) X-ray structure of the tetra-ester precursor to [2]rotaxane 148. (d) X-ray structure of a single unit of the mechanicallyinterlocked molecule, coordinated to four Cu(II) paddlewheel clusters.X-ray crystal structure reprinted with permission from ref (1475). Copyright 2012 NaturePublishing Group.
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fig59: (a)Structure of [2]rotaxane 148. (b) Schematic representationof the structural design components used to create the metal–organicframework. (c) X-ray structure of the tetra-ester precursor to [2]rotaxane 148. (d) X-ray structure of a single unit of the mechanicallyinterlocked molecule, coordinated to four Cu(II) paddlewheel clusters.X-ray crystal structure reprinted with permission from ref (1475). Copyright 2012 NaturePublishing Group.

Mentions: Sozzani and co-workers have published several examples ofmolecularrotors in crystals with open porosity, as well as molecular rotorsembedded in porous frameworks such as aromatic or organosilica frameworks.In some of these systems, the rotational motion can be actively regulatedin response to guest molecules such as CO2, I2, tetraethylammonium chloride, and water. These responsive materialsmay find applications spanning from sensors to actuators, which couldcapture and release chemicals on command.1471−1474 Recently, Schurko and Loeb published a metal–organic framework(MOF) material containing dynamically interlocked components.1475 They used [2]rotaxane 148 asthe organic linker and binuclear Cu(II) units as the nodes (Figure 59). Void spacesinside the rigid framework allowed the macrocyclic ring of the rotaxaneto rotate rapidly. Initially the macrocycle is locked in place throughhydrogen bonding from an ether oxygen atom of the macrocycle to acopper-bound H2O. Dynamic motion occurs upon removal ofthe water molecules by heating to 150 °C under vacuum, destroyinghydrogen-bond interactions and allowing rapid circumrotation aboutthe rotaxane axle. Rotation can be quenched by the addition of water.This type of material could be useful for the creation of solid-statemolecular switches and machines.1475 Arotaxane-based molecular shuttle incorporated into the structure ofa MOF has recently been reported.1476


Artificial Molecular Machines.

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

(a)Structure of [2]rotaxane 148. (b) Schematic representationof the structural design components used to create the metal–organicframework. (c) X-ray structure of the tetra-ester precursor to [2]rotaxane 148. (d) X-ray structure of a single unit of the mechanicallyinterlocked molecule, coordinated to four Cu(II) paddlewheel clusters.X-ray crystal structure reprinted with permission from ref (1475). Copyright 2012 NaturePublishing Group.
© Copyright Policy
Related In: Results  -  Collection

License
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getmorefigures.php?uid=PMC4585175&req=5

fig59: (a)Structure of [2]rotaxane 148. (b) Schematic representationof the structural design components used to create the metal–organicframework. (c) X-ray structure of the tetra-ester precursor to [2]rotaxane 148. (d) X-ray structure of a single unit of the mechanicallyinterlocked molecule, coordinated to four Cu(II) paddlewheel clusters.X-ray crystal structure reprinted with permission from ref (1475). Copyright 2012 NaturePublishing Group.
Mentions: Sozzani and co-workers have published several examples ofmolecularrotors in crystals with open porosity, as well as molecular rotorsembedded in porous frameworks such as aromatic or organosilica frameworks.In some of these systems, the rotational motion can be actively regulatedin response to guest molecules such as CO2, I2, tetraethylammonium chloride, and water. These responsive materialsmay find applications spanning from sensors to actuators, which couldcapture and release chemicals on command.1471−1474 Recently, Schurko and Loeb published a metal–organic framework(MOF) material containing dynamically interlocked components.1475 They used [2]rotaxane 148 asthe organic linker and binuclear Cu(II) units as the nodes (Figure 59). Void spacesinside the rigid framework allowed the macrocyclic ring of the rotaxaneto rotate rapidly. Initially the macrocycle is locked in place throughhydrogen bonding from an ether oxygen atom of the macrocycle to acopper-bound H2O. Dynamic motion occurs upon removal ofthe water molecules by heating to 150 °C under vacuum, destroyinghydrogen-bond interactions and allowing rapid circumrotation aboutthe rotaxane axle. Rotation can be quenched by the addition of water.This type of material could be useful for the creation of solid-statemolecular switches and machines.1475 Arotaxane-based molecular shuttle incorporated into the structure ofa MOF has recently been reported.1476

View Article: PubMed Central - PubMed

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

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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.