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[摘要]：A review. Supramol. gels that change their state or structure in response to anion stimuli were highlighted. Only a few examples exist of such supramol. gels, the structures and properties of which can be controlled and modulated by interactions with anions. To form anion-responsive dimensionally-controlled organized structures, the constituent low-mol.-wt. gelator mols. must act as anion receptors by possessing one or more of van der Waals interaction units (aliph. chains), stacking p planes, hydrogen-bonding sites, and metal-coordination units. This Concept focuses on the gelation and transition behaviors of amide-and urea-based anion-stimulated systems, metal-coordinated systems, and novel acyclic p-conjugated oligopyrroles that act as mol. flippers. |
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