Chloride Coordination by Oligoureas: From Mononuclear Crescents to Dinuclear Foldamers

A series of acyclic oligourea receptors which closely resemble the scaffolds and coordination behavior of oligopyridines have been synthesized. Assembly of the receptors with chloride ions afforded mononuclear anion complexes or dinuclear foldamers depending on the number of the urea groups.

一系列与寡吡啶（oligopyridines）骨架及配位行为高度相似的无环寡脲受体已被合成。将该类受体与氯离子组装时，可根据脲基数量的不同，分别得到单核阴离子配合物或双核折叠体（dinuclear foldamers）。