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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

No MeSH data available.


Directionalcircumrotation in a [3]catenane. (i) hν (350nm), (ii) hν (254 nm), (iii)heating; or heating with catalytic ethylenediamine; or catalytic Br2, hν (400–670 nm). Adapted withpermission from ref (883). Copyright 2003 Nature Publishing Group.
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fig32: Directionalcircumrotation in a [3]catenane. (i) hν (350nm), (ii) hν (254 nm), (iii)heating; or heating with catalytic ethylenediamine; or catalytic Br2, hν (400–670 nm). Adapted withpermission from ref (883). Copyright 2003 Nature Publishing Group.

Mentions: Ion exchange,838−840 pH,841−844 redox,845−856 demetalation,842,857−869 light or redox-mediated ligand exchange of metals,853,855,870 photochemical switching,870−878 photoisomerization-dependent sequestering of macrocycle879 and solvent,826,880−882 photoisomerization-dependent change in hydrogen-bonding potency,883 and the self-assembly of liquid crystal phases884 have also been reported to control the rotationof the macrocycle in catenanes. However, directional rotation of onemacrocycle with respect to another in a catenane structure has rarelybeen investigated. Directional rotation was achieved with a [3]catenanein which the presence of a third macrocyclic component helps to restrictthe rotational freedom of the molecule (Figure 32).883 The largemacrocycle on which the two small macrocycles rotate bears four differentinteraction sites: two fumaramide motifs with different binding affinities(light green and red, the methylated station has a lower affinityfor steric reasons), one succinic amide ester (orange), and finallyan amide group (dark green). A benzophenone unit is attached closeto the first fumaramide station to enable selective photosensitizedisomerization of this olefinic group through energy transfer usinga higher wavelength than required for nonsensitized isomerization.


Artificial Molecular Machines.

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

Directionalcircumrotation in a [3]catenane. (i) hν (350nm), (ii) hν (254 nm), (iii)heating; or heating with catalytic ethylenediamine; or catalytic Br2, hν (400–670 nm). Adapted withpermission from ref (883). Copyright 2003 Nature Publishing Group.
© Copyright Policy
Related In: Results  -  Collection

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

fig32: Directionalcircumrotation in a [3]catenane. (i) hν (350nm), (ii) hν (254 nm), (iii)heating; or heating with catalytic ethylenediamine; or catalytic Br2, hν (400–670 nm). Adapted withpermission from ref (883). Copyright 2003 Nature Publishing Group.
Mentions: Ion exchange,838−840 pH,841−844 redox,845−856 demetalation,842,857−869 light or redox-mediated ligand exchange of metals,853,855,870 photochemical switching,870−878 photoisomerization-dependent sequestering of macrocycle879 and solvent,826,880−882 photoisomerization-dependent change in hydrogen-bonding potency,883 and the self-assembly of liquid crystal phases884 have also been reported to control the rotationof the macrocycle in catenanes. However, directional rotation of onemacrocycle with respect to another in a catenane structure has rarelybeen investigated. Directional rotation was achieved with a [3]catenanein which the presence of a third macrocyclic component helps to restrictthe rotational freedom of the molecule (Figure 32).883 The largemacrocycle on which the two small macrocycles rotate bears four differentinteraction sites: two fumaramide motifs with different binding affinities(light green and red, the methylated station has a lower affinityfor steric reasons), one succinic amide ester (orange), and finallyan amide group (dark green). A benzophenone unit is attached closeto the first fumaramide station to enable selective photosensitizedisomerization of this olefinic group through energy transfer usinga higher wavelength than required for nonsensitized isomerization.

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.