A modular approach to anion binding podands: adaptability in design and synthesis leads to adaptability in properties.

Progress in the development of a modular approach towards flexible anion-binding and sensing systems is reviewed within the context of related developments in conformationally flexible anion- and salt-binding hosts. The transferability of concepts and structural features across chemically distinct systems is emphasised along with the use of modular components in polymer and gel-phase systems.

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