Tetrahedral Anion Cage: Self‐Assembly of a (PO₄)₄L₄ Complex from a Tris(bisurea) Ligand

Abstract

A C3-symmetric tris(bisurea) ligand L assembles with PO43− ions to form the tetrahedral cage [(PO4)4L4]12−. The PO43− ions form the four vertices and each forms 12 NH⋅⋅⋅O hydrogen bonds with 6 urea groups. A unique trinuclear pinwheel-like helical complex [(SO4)3L2]6− is formed from L and SO42− ions (see picture). 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.