Royal Society of Chemistry, Chemical Science, 18(12), p. 6378-6384, 2021
DOI: 10.1039/d1sc01163d
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Like non-collapsible open voids within stacks of steel H-beams, a non-covalent assembly of three-dimensional aromatics produces porous crystals. Concerted motions of the molecular H-beams open and close the cavities in response to external stimuli.