A Polyaromatic Receptor with an Ethereal Fence that Directs K<sup>+</sup> for Effective Cation−π Interaction
作者:Ruchi Shukla、Sergey V. Lindeman、Rajendra Rathore
DOI:10.1021/ja060502y
日期:2006.4.1
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.