Extended cavitands of nanoscale dimensions
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]
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|Source:||European Journal of Organic Chemistry|
|01_Menozzi_Extended_cavitands_of_2005.pdf||182.05 kB||Adobe PDF||Request a copy|
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