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Article: Radial Hetero[5]catenanes: Peripheral Isomer Sequences of the Interlocked Macrocycles

TitleRadial Hetero[5]catenanes: Peripheral Isomer Sequences of the Interlocked Macrocycles
Authors
Keywordscatenanes
isomers
macrocycles
noncovalent properties
supramolecular chemistry
Issue Date2019
PublisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/journal/26737/home
Citation
Angewandte Chemie (International Edition), 2019, v. 58 n. 48, p. 17375-17382 How to Cite?
AbstractA pair of radial [5]catenanes, with either an isomeric cyclic ‐AABB‐ or ‐ABAB‐ type sequence of the interlocked β‐cyclodextrin (β‐CD) and cucurbit[6]uril (CB[6]) units, has been efficiently synthesized. Because of a marked difference in the binding strength and interlocking sequence of the peripheral macrocycles, interesting sequence‐dependent properties, characteristic of mechanically bonded macrocycles, were realized. Variable‐temperature 1H NMR studies showed that the ‐ABAB‐ isomer has a more independent β‐CD dynamic, whereas the β‐CD motions in the ‐AABB‐ isomer are coupled. Dynamics of the pH‐insensitive β‐CD can also be further modulated upon base‐triggered mobilization of the CB[6]. These unique properties of the mechanical bond expressed in a sequence‐specific fashion and the transmission of the control on the macrocycle dynamics from one interlocked component to another, highlight the potential of similar complex hetero[n ]catenanes in the design of advanced, multicomponent molecular machines.
Persistent Identifierhttp://hdl.handle.net/10722/284007
ISSN
2023 Impact Factor: 16.1
2023 SCImago Journal Rankings: 5.300
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorNg, AWH-
dc.contributor.authorYee, CC-
dc.contributor.authorAu Yeung, HY-
dc.date.accessioned2020-07-20T05:55:17Z-
dc.date.available2020-07-20T05:55:17Z-
dc.date.issued2019-
dc.identifier.citationAngewandte Chemie (International Edition), 2019, v. 58 n. 48, p. 17375-17382-
dc.identifier.issn1433-7851-
dc.identifier.urihttp://hdl.handle.net/10722/284007-
dc.description.abstractA pair of radial [5]catenanes, with either an isomeric cyclic ‐AABB‐ or ‐ABAB‐ type sequence of the interlocked β‐cyclodextrin (β‐CD) and cucurbit[6]uril (CB[6]) units, has been efficiently synthesized. Because of a marked difference in the binding strength and interlocking sequence of the peripheral macrocycles, interesting sequence‐dependent properties, characteristic of mechanically bonded macrocycles, were realized. Variable‐temperature 1H NMR studies showed that the ‐ABAB‐ isomer has a more independent β‐CD dynamic, whereas the β‐CD motions in the ‐AABB‐ isomer are coupled. Dynamics of the pH‐insensitive β‐CD can also be further modulated upon base‐triggered mobilization of the CB[6]. These unique properties of the mechanical bond expressed in a sequence‐specific fashion and the transmission of the control on the macrocycle dynamics from one interlocked component to another, highlight the potential of similar complex hetero[n ]catenanes in the design of advanced, multicomponent molecular machines.-
dc.languageeng-
dc.publisherWiley - VCH Verlag GmbH & Co. KGaA. The Journal's web site is located at http://www3.interscience.wiley.com/journal/26737/home-
dc.relation.ispartofAngewandte Chemie (International Edition)-
dc.rightsThis is the peer reviewed version of the following article: Angewandte Chemie (International Edition), 2019, v. 58 n. 48, p. 17375-17382, which has been published in final form at https://doi.org/10.1002/anie.201908576. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.-
dc.subjectcatenanes-
dc.subjectisomers-
dc.subjectmacrocycles-
dc.subjectnoncovalent properties-
dc.subjectsupramolecular chemistry-
dc.titleRadial Hetero[5]catenanes: Peripheral Isomer Sequences of the Interlocked Macrocycles-
dc.typeArticle-
dc.identifier.emailAu Yeung, HY: hoyuay@hku.hk-
dc.identifier.authorityAu Yeung, HY=rp01819-
dc.description.naturepostprint-
dc.identifier.doi10.1002/anie.201908576-
dc.identifier.pmid31549474-
dc.identifier.scopuseid_2-s2.0-85074406232-
dc.identifier.hkuros310978-
dc.identifier.volume58-
dc.identifier.issue48-
dc.identifier.spage17375-
dc.identifier.epage17382-
dc.identifier.isiWOS:000490642100001-
dc.publisher.placeGermany-
dc.identifier.issnl1433-7851-

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