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A Dynamic Library of Porphyrinic True Nanorings


  • Financial support from the Ministry of Science and Higher Education (Grant N N204 021939) is kindly acknowledged.


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Behind the wheel: A 10 nm diameter nanoring, containing 24 porphyrin units, has been created by a Vernier-templating self-organization of hexa- or octadentate templating units and linear covalently linked porphyrin oligomers. Coordination of a bidentate ligand triggers a conversion of the molecular nanocylinder into a molecular nanoannulus to afford the dimeric species, which can adopt a water wheel structure (see picture).