Reversible encapsulation by self-assembling resorcinarene subunits
Open Access
- 26 June 2001
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 98 (14) , 7662-7665
- https://doi.org/10.1073/pnas.141226898
Abstract
Encapsulation complexes are assemblies in which a reversibly formed host more or less completely surrounds guest molecules. Host structures held together by hydrogen bonds have lifetimes in organic solvents of milliseconds to hours, long enough to directly observe the encapsulated guest by NMR spectroscopy. We describe here the action of alkyl ammonium compounds as guests that gather up to six molecules of the host module to form encapsulation complexes. The stoichiometry of the complexes—the largest hydrogen-bonded host capsules to date—is determined by the size and concentration of the guest.Keywords
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