Iodine-Assisted Assembly of Helical Coordination Polymers of Cucurbituril and Asymmetric Copper(II) Complexes


  • F.Z. gratefully thanks Prof. Kimoon Kim of Pohang University of Science and Technology for his kind direction on postdoctoral research during 2001–2002 in CSS. This work was supported by grants from the Natural Science Foundation of China (no. 29971014 to F.Z. and nos. 20071017 and 50272027 to H.-L.C.), the State Postdoctoral Foundation of China (F.Z.), and a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology of Japan (no. 16350036 to O.Y.).


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An anion-exchange strategy was used to prepare two helical structures made up of cucurbituril and asymmetric copper(II) complexes containing 8-hydroxyquinoline-5-sulfonate and 3,5-diiodosalicylate (right half of picture) or 3-iodobenzoate (left half). The shape-matching interactions between cucurbituril and the copper complexes were assisted by the iodo substituents.