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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) X-raycrystal structure of porphyrin double decker complex 16 with cerium(IV). Reprinted with permission from ref (228). Copyright 1989 Wiley-VCHVerlag GmbH & Co. KGaA, Weinheim. (b) Representation of the cooperativebinding of guest molecules to porphyrin double decker complex 17.229
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fig13: (a) X-raycrystal structure of porphyrin double decker complex 16 with cerium(IV). Reprinted with permission from ref (228). Copyright 1989 Wiley-VCHVerlag GmbH & Co. KGaA, Weinheim. (b) Representation of the cooperativebinding of guest molecules to porphyrin double decker complex 17.229

Mentions: Control of the rotary motion of ligandsin metal sandwich or double-decker complexes is somewhat conceptuallysimilar to controlling rotation around covalent single bonds. Aidaand co-workers demonstrated that porphyrin ligands in double deckercomplexes such as 16 can rotate with respect to eachother depending on the central metal atom and their steric bulk (Figure 13a).224,225 Studies on a variety of metal complexes found that the central metalhad an influence on the speed of rotation.226 Complexes synthesized from two D2h symmetry porphyrin free-bases are chiral, and therefore theirrotary motion corresponds to enantiomerization and can thus be studiedby CD spectroscopy. Racemization can be induced by protonation orreduction of the metal center. The second reduces π–πinteractions between the two ligands as a consequence of the largerionic radius of the metal center.227


Artificial Molecular Machines.

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

(a) X-raycrystal structure of porphyrin double decker complex 16 with cerium(IV). Reprinted with permission from ref (228). Copyright 1989 Wiley-VCHVerlag GmbH & Co. KGaA, Weinheim. (b) Representation of the cooperativebinding of guest molecules to porphyrin double decker complex 17.229
© Copyright Policy
Related In: Results  -  Collection

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

fig13: (a) X-raycrystal structure of porphyrin double decker complex 16 with cerium(IV). Reprinted with permission from ref (228). Copyright 1989 Wiley-VCHVerlag GmbH & Co. KGaA, Weinheim. (b) Representation of the cooperativebinding of guest molecules to porphyrin double decker complex 17.229
Mentions: Control of the rotary motion of ligandsin metal sandwich or double-decker complexes is somewhat conceptuallysimilar to controlling rotation around covalent single bonds. Aidaand co-workers demonstrated that porphyrin ligands in double deckercomplexes such as 16 can rotate with respect to eachother depending on the central metal atom and their steric bulk (Figure 13a).224,225 Studies on a variety of metal complexes found that the central metalhad an influence on the speed of rotation.226 Complexes synthesized from two D2h symmetry porphyrin free-bases are chiral, and therefore theirrotary motion corresponds to enantiomerization and can thus be studiedby CD spectroscopy. Racemization can be induced by protonation orreduction of the metal center. The second reduces π–πinteractions between the two ligands as a consequence of the largerionic radius of the metal center.227

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.