title: A polyaromatic receptor with an ethereal fence that directs K+ for effective cation-pi interaction.
abstract: We have designed and synthesized a HAB-based receptor with six ethereal oxygens on one face of the central benzene ring by a trimerization of a diarylacetylene in which the ethereal oxygens are tied together with a tetramethylene bridge. This unique amphiphilic receptor allows an efficient binding of a single potassium cation by a synergistic interaction with the polar ethereal fence and with the central benzene ring via cation-pi interaction. Furthermore, the ready accessibility of this unique receptor with a bipolar binding pocket will allow the exploration of its usage for developing efficient sensing devices for various metal cations.
authors.affiliation: Department of Chemistry, Marquette University, P.O. Box 1881, Milwaukee, Wisconsin 53201-1881, USA.
authors.forename: Ruchi
authors.initials: R
authors.lastname: Shukla
authors.forename: Sergey V
authors.initials: SV
authors.lastname: Lindeman
authors.forename: Rajendra
authors.initials: R
authors.lastname: Rathore