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Artificial Molecular Machines.

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

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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)Molecular bevel gear 2, consisting of two 9-triptycylgroups joined through a bridge head carbon to a central atom.150 (b) X-ray structure of the molecular bevelgear (side view). (c) X-ray structure of the molecular bevel gear(top view). Adapted with permission from ref (156). Copyright 1984 AmericanChemical Society.
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fig9: (a)Molecular bevel gear 2, consisting of two 9-triptycylgroups joined through a bridge head carbon to a central atom.150 (b) X-ray structure of the molecular bevelgear (side view). (c) X-ray structure of the molecular bevel gear(top view). Adapted with permission from ref (156). Copyright 1984 AmericanChemical Society.

Mentions: Öki’s group conducted pioneering investigationsintorestricted rotation about sterically hindered single bonds in moleculessuch as 9-arylfluorenes and triptycenes.140−149 These molecules showed very high rotational barriers, and, in somecases, it was possible to isolate the rotational isomers (rotamers).Inspired by this work, Mislow and Iwamura simultaneously introducedthe concept of dynamic gearing of proximate substituents in crowdedmolecules in molecular analogues of propellers and bevel gears.150−167 The first molecular bevel gear consisted of two 9-triptycyl groupsjoined through their bridge head carbons to a central atom (Figure 9). Experimental andtheoretical studies confirmed that the triptycyl groups are tightlyintermeshed and undergo correlated disrotatory motion.150,156


Artificial Molecular Machines.

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

(a)Molecular bevel gear 2, consisting of two 9-triptycylgroups joined through a bridge head carbon to a central atom.150 (b) X-ray structure of the molecular bevelgear (side view). (c) X-ray structure of the molecular bevel gear(top view). Adapted with permission from ref (156). Copyright 1984 AmericanChemical Society.
© Copyright Policy
Related In: Results  -  Collection

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

fig9: (a)Molecular bevel gear 2, consisting of two 9-triptycylgroups joined through a bridge head carbon to a central atom.150 (b) X-ray structure of the molecular bevelgear (side view). (c) X-ray structure of the molecular bevel gear(top view). Adapted with permission from ref (156). Copyright 1984 AmericanChemical Society.
Mentions: Öki’s group conducted pioneering investigationsintorestricted rotation about sterically hindered single bonds in moleculessuch as 9-arylfluorenes and triptycenes.140−149 These molecules showed very high rotational barriers, and, in somecases, it was possible to isolate the rotational isomers (rotamers).Inspired by this work, Mislow and Iwamura simultaneously introducedthe concept of dynamic gearing of proximate substituents in crowdedmolecules in molecular analogues of propellers and bevel gears.150−167 The first molecular bevel gear consisted of two 9-triptycyl groupsjoined through their bridge head carbons to a central atom (Figure 9). Experimental andtheoretical studies confirmed that the triptycyl groups are tightlyintermeshed and undergo correlated disrotatory motion.150,156

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.