Volume 133, Issue 9 pp. 4535-4540
Zuschrift

Glucose Binding Drives Reconfiguration of a Dynamic Library of Urea-Containing Metal–Organic Assemblies

Dr. Dong Yang

Dr. Dong Yang

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069 China

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Dr. Larissa K. S. von Krbek

Dr. Larissa K. S. von Krbek

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK

Present address: Kekulé-Institut für Organische Chemie und Biochemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany

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Prof. Le Yu

Prof. Le Yu

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069 China

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Dr. Tanya K. Ronson

Dr. Tanya K. Ronson

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK

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Prof. John D. Thoburn

Prof. John D. Thoburn

Department of Chemistry, Randolph-Macon College, Ashland, VA, 23005 USA

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Dr. John P. Carpenter

Dr. John P. Carpenter

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK

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Dr. Jake L. Greenfield

Dr. Jake L. Greenfield

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK

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Duncan J. Howe

Duncan J. Howe

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK

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Prof. Biao Wu

Prof. Biao Wu

Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, 710069 China

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Prof. Jonathan R. Nitschke

Corresponding Author

Prof. Jonathan R. Nitschke

Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW UK

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First published: 20 November 2020
Citations: 14

Abstract

A bis-urea-functionalized ditopic subcomponent assembled with 2-formylpyridine and FeII, resulting in a dynamic library of metal–organic assemblies: an irregular FeII4L6 structure and three FeII2L3 stereoisomers: left- and right-handed helicates and a meso-structure. This library reconfigured in response to the addition of monosaccharide derivatives, which served as guests for specific library members, and the rate of saccharide mutarotation was also enhanced by the library. The (P) enantiomer of the FeII2L3 helical structure bound β-D-glucose selectively over α-D-glucose. As a consequence, the library collapsed into the (P)-FeII2L3 helicate following glucose addition. The α-D-glucose was likewise transformed into the β-D-anomer during equilibration and binding. Thus, β-D-glucose and (P)-3 amplified each other in the product mixture, as metal–organic and saccharide libraries geared together into a single equilibrating system.

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