期刊
ADVANCED MATERIALS
卷 33, 期 1, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.202004192
关键词
adsorption; coordination cages; self‐ assembly; supramolecular chemistry
类别
资金
- UK Engineering and Physical Sciences Research Council [EPSRC EP/P027067/1]
- European Research Council [ERC 695009]
- Cambridge Commonwealth, European and International Trust
- Christ's College, University of Cambridge
- Biotechnology and Biological Sciences Research Council [BB/M011194/1]
- BBSRC [1804914] Funding Source: UKRI
- EPSRC [EP/P027067/1] Funding Source: UKRI
A method for immobilizing coordination cages on alumina has been reported, allowing for the encapsulation and separation of guest and non-guest molecules. Quantification of cage loadings and guest displacement assays demonstrate the retained ability of the adsorbed cages.
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.
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