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Seven of the best: A dynamic combinatorial library of polycatenated tetrahedra was prepared by complexation between a dynamic Fe4L6 tetrahedral cage, constructed from ligands containing an electron-deficient naphthalenediimide core, and an electron-rich aromatic crown ether, 1,5-dinaphtho[38]crown-10. The highest order species in the library is the tetrahedral [7]catenane.
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Black et al. (2013) studied this question.
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