An Anion‐Modulated Three‐Way Supramolecular Switch that Selectively Binds Dihydrogen Phosphate, H₂PO₄⁻

Abstract

An anionic three-way switch: A bipyridyl bis(urea)-based anion receptor that is highly selective for dihydrogen phosphate demonstrates spectroscopically distinct anion-bound conformations toward halides and select oxoanions. 1H NMR studies show the differing anion-induced conformations are reversible allowing this system to function as a three-way molecular switch. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.