Wu Yang-jie
2003
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Journal
Journal of Fudan University
Abstract
By the reaction of (3-bromomethyl)ethyl benzoate with calix(4)arene, a new o-disubstituted calyx(4) arene derivative was synthesized. The product was confirmed by elemental analysis, IR, ()~(1)H and ()~(13)C NMR. The crystal structure was determined by X-ray crystallographic analysis, which clearly revealed that the ethyl substituents are consecutively included intermolecularly into the adjacent calix backbone cavities by CH-π interactions, thus giving rise to a two dimensional supramolecule.