Molecular 'boxes' can hold other molecules and often serve as the moving parts in molecular switches. The latest addition to this class of compounds is a simple-to-prepare positively charged macrocycle that can encircle molecular guests of appropriate size and charge — and offers new opportunities for assembling stimuli-responsive structures.
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Share, A., Flood, A. Thinking inside and outside the box. Nature Chem 2, 349–350 (2010). https://doi.org/10.1038/nchem.630
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DOI: https://doi.org/10.1038/nchem.630