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Guest Encapsulation within Surface-Adsorbed Self-Assembled Cages.

Accepted version
Peer-reviewed

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Type

Article

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Authors

Smith, Alyssa 
Nitschke, Jonathan R  ORCID logo  https://orcid.org/0000-0002-4060-5122

Abstract

Coordination cages encapsulate a wide variety of guests in the solution state. This ability renders them useful for applications such as catalysis and the sequestration of precious materials. A simple and general method for the immobilization of coordination cages on alumina is reported. Cage loadings are quantified via adsorption isotherms and guest displacement assays demonstrate that the adsorbed cages retain the ability to encapsulate and separate guest and non-guest molecules. Finally, a system of two cages, adsorbed on to different regions of alumina, stabilizes and separates a pair of Diels-Alder reagents. The addition of a single competitive guest results in the controlled release of the reagents, thus triggering their reaction. This method of coordination cage immobilization on solid phases is envisaged to be applicable to the extensive library of reported cages, enabling new applications based upon selective solid-phase molecular encapsulation.

Description

Keywords

adsorption, coordination cages, self-assembly, supramolecular chemistry

Journal Title

Adv Mater

Conference Name

Journal ISSN

0935-9648
1521-4095

Volume Title

33

Publisher

Wiley

Rights

All rights reserved
Sponsorship
Engineering and Physical Sciences Research Council (EP/P027067/1)
European Research Council (695009)
Biotechnology and Biological Sciences Research Council (BB/M011194/1)
Biotechnology and Biological Sciences Research Council (1804914)
UK Engineering and Physical Sciences Research Council (EPSRC EP/P027067/1) , European Research Council (ERC 695009)