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Extended cavitands of nanoscale dimensions

Menozzi, Edoardo; Onagi, Hideki; Rheingold, Arnold L; Rebek, Julius (Jr.)


New tetrabenzimidazole cavitands with upper rims extended by aromatic groups have been prepared and their X-ray structures were analyzed. The reversible encapsulation of a series of n-alkylammonium guests was studied by NMR spectroscopy and mass spectrometry. These guests showed different binding modes and unique interactions with the hydrophobic cavity. The trimethylammonium guests bearing n-butyl to n-hexyl substituents stabilize the C4v conformation of the cavitand by additional CH⋯π...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
Source: European Journal of Organic Chemistry
DOI: 10.1002/ejoc.200500342


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