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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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Porphyrin-catalyzedepoxidation of a butadiene polymer by 144, utilizinga rotaxane architecture. Reprinted with permissionfrom ref (1456). Copyright2003 Nature Publishing Group.
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fig56: Porphyrin-catalyzedepoxidation of a butadiene polymer by 144, utilizinga rotaxane architecture. Reprinted with permissionfrom ref (1456). Copyright2003 Nature Publishing Group.

Mentions: In a seminal example of a synthetic system mimicking some of theproperties of an enzyme, Nolte, Rowan et al. reported a rotaxane-basedcatalytic system.1456 A glycoluril clip-basedmacrocycle containing a manganese porphyrin catalyst catalyzed theepoxidation of a butadiene polymer, which formed the thread of therotaxane. A greatly enhanced proportion of cis-epoxidewas observed in the product, consistent with previous work showingthat when the reaction occurred in the macrocyclic cavity steric constraintsfavored the cis product.1457 This system has been further optimized by substitution of the porphyrinmacrocycle with protective ligand groups, which increase turnovernumber (TON) and provide even greater cis selectivityby preventing reaction on the exterior face of the macrocycle (Figure 56).1458 The rate of threading of their macrocycleonto polymeric materials was also studied and found to be highly dependenton interactions between the thread and the outside of the macrocyclepreassociating the two moieties.1459


Artificial Molecular Machines.

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

Porphyrin-catalyzedepoxidation of a butadiene polymer by 144, utilizinga rotaxane architecture. Reprinted with permissionfrom ref (1456). Copyright2003 Nature Publishing Group.
© Copyright Policy
Related In: Results  -  Collection

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

fig56: Porphyrin-catalyzedepoxidation of a butadiene polymer by 144, utilizinga rotaxane architecture. Reprinted with permissionfrom ref (1456). Copyright2003 Nature Publishing Group.
Mentions: In a seminal example of a synthetic system mimicking some of theproperties of an enzyme, Nolte, Rowan et al. reported a rotaxane-basedcatalytic system.1456 A glycoluril clip-basedmacrocycle containing a manganese porphyrin catalyst catalyzed theepoxidation of a butadiene polymer, which formed the thread of therotaxane. A greatly enhanced proportion of cis-epoxidewas observed in the product, consistent with previous work showingthat when the reaction occurred in the macrocyclic cavity steric constraintsfavored the cis product.1457 This system has been further optimized by substitution of the porphyrinmacrocycle with protective ligand groups, which increase turnovernumber (TON) and provide even greater cis selectivityby preventing reaction on the exterior face of the macrocycle (Figure 56).1458 The rate of threading of their macrocycleonto polymeric materials was also studied and found to be highly dependenton interactions between the thread and the outside of the macrocyclepreassociating the two moieties.1459

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.