Size selective recognition of small esters by a negative allosteric hemicarcerand

A bis(resorcinarene) substituted 2,2′-bipyridine was found to bind weakly to small esters like ethyl acetate whereas more bulky esters were not recognized by this hemicarcerand. This size selective molecular recognition could be controlled by a negative cooperative allosteric effect: coordination of...

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Main Authors: Holger Staats, Arne Lützen
Format: Article
Language:English
Published: Beilstein-Institut 2010-02-01
Series:Beilstein Journal of Organic Chemistry
Subjects:
Online Access:https://doi.org/10.3762/bjoc.6.10
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author Holger Staats
Arne Lützen
author_facet Holger Staats
Arne Lützen
author_sort Holger Staats
collection DOAJ
description A bis(resorcinarene) substituted 2,2′-bipyridine was found to bind weakly to small esters like ethyl acetate whereas more bulky esters were not recognized by this hemicarcerand. This size selective molecular recognition could be controlled by a negative cooperative allosteric effect: coordination of a triscarbonyl rhenium chloride fragment to the bipyridine causes a conformational rearrangement that orientates the resorcinarene moieties in different directions so that they cannot act cooperatively in the binding of the substrate.
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spelling doaj.art-468a54308f4345f782c1f4c8f0c5fdce2022-12-21T22:40:29ZengBeilstein-InstitutBeilstein Journal of Organic Chemistry1860-53972010-02-01611010.3762/bjoc.6.101860-5397-6-10Size selective recognition of small esters by a negative allosteric hemicarcerandHolger Staats0Arne Lützen1University of Bonn, Kekulé-Institute of Organic Chemistry and Biochemistry, Gerhard-Domagk-Str. 1, D-53121 Bonn, GermanyUniversity of Bonn, Kekulé-Institute of Organic Chemistry and Biochemistry, Gerhard-Domagk-Str. 1, D-53121 Bonn, GermanyA bis(resorcinarene) substituted 2,2′-bipyridine was found to bind weakly to small esters like ethyl acetate whereas more bulky esters were not recognized by this hemicarcerand. This size selective molecular recognition could be controlled by a negative cooperative allosteric effect: coordination of a triscarbonyl rhenium chloride fragment to the bipyridine causes a conformational rearrangement that orientates the resorcinarene moieties in different directions so that they cannot act cooperatively in the binding of the substrate.https://doi.org/10.3762/bjoc.6.10allosteric receptors2,2′-bipyridinehemicarcerandmolecular recognitionresorcin[4]arene
spellingShingle Holger Staats
Arne Lützen
Size selective recognition of small esters by a negative allosteric hemicarcerand
Beilstein Journal of Organic Chemistry
allosteric receptors
2,2′-bipyridine
hemicarcerand
molecular recognition
resorcin[4]arene
title Size selective recognition of small esters by a negative allosteric hemicarcerand
title_full Size selective recognition of small esters by a negative allosteric hemicarcerand
title_fullStr Size selective recognition of small esters by a negative allosteric hemicarcerand
title_full_unstemmed Size selective recognition of small esters by a negative allosteric hemicarcerand
title_short Size selective recognition of small esters by a negative allosteric hemicarcerand
title_sort size selective recognition of small esters by a negative allosteric hemicarcerand
topic allosteric receptors
2,2′-bipyridine
hemicarcerand
molecular recognition
resorcin[4]arene
url https://doi.org/10.3762/bjoc.6.10
work_keys_str_mv AT holgerstaats sizeselectiverecognitionofsmallestersbyanegativeallosterichemicarcerand
AT arnelutzen sizeselectiverecognitionofsmallestersbyanegativeallosterichemicarcerand