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Metal and Organic Templates Together Control the Size of Covalent Macrocycles and Cages.

Accepted version
Peer-reviewed

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Article

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Authors

Lavendomme, Roy 
Ronson, Tanya K 
Nitschke, Jonathan R  ORCID logo  https://orcid.org/0000-0002-4060-5122

Abstract

Covalent macrocycles and three-dimensional cages were prepared by the self-assembly of di- or tritopic anilines and 2,6-diformylpyridine subcomponents around palladium(II) templates. The resulting 2,6-bis(imino)pyridyl-PdII motif contains a tridentate ligand, leaving a free coordination site on the PdII centers, which points inward. The binding of ligands to the free coordination sites in these assemblies was found to alter the product stability, and multitopic ligands could be used to control product size. Multitopic ligands also bridged metallomacrocycles to form higher-order supramolecular assemblies, which were characterized via NMR spectroscopy, mass spectrometry, and X-ray crystallography. An efficient method was developed to reduce the imine bonds to secondary amines, leading to fully organic covalent macrocycles and cages that were inaccessible through other means.

Description

Keywords

0303 Macromolecular and Materials Chemistry

Journal Title

J Am Chem Soc

Conference Name

Journal ISSN

0002-7863
1520-5126

Volume Title

141

Publisher

American Chemical Society (ACS)

Rights

All rights reserved
Sponsorship
European Research Council (695009)
Engineering and Physical Sciences Research Council (EP/P027067/1)
Fondation Wiener-Anspach (FWA). Diamond Light Source - Beamline I19 (MT15768). National Mass Spectrometry Facility at the University of Swansea.