Five-Component Self-Assembly of Cucurbituril-Based Hetero-pseudorotaxanes.
CHEMISTRYOPEN(2017)
Abstract
[5]Pseudorotaxanes can be obtained by self-sorting using heteroditopic guests and various cucurbituril homologues as hosts. The assembly and chemically induced disassembly of the pseudorotaxanes can be monitored by measuring the fluorescence of the anthracene guest in solution. Mass spectral evidence for the supramolecular assemblies is obtained in the gas phase. The disassembly in the gas phase can be achieved by collision-induced dissociation leading to the corresponding [2]- and [3]pseudorotaxanes.
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Key words
fluorescence,host-guest systems,macrocycles,mass spectrometry,rotaxanes
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