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Synlett 1994; 1994(12): 1059-1062
DOI: 10.1055/s-1994-34987
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The Design and Self-Assembly of a Furan-Containing [2]Catenane

Peter R. Ashton* , Mark A. Blower, Sayeedha Iqbal, Colin H. McLean, J. Fraser Stoddart, Malcolm S. Tolley, David J. Williams
  • *School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
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Publication Date:
22 March 2002 (online)

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The bisfuran-containing crown ether 8 has been incorporated, along with bis(paraquat-p-phenylene), into a [2]catenane 2.4PF6 using a self-assembly approach. The presence of the furan units in 8 has a disruptive influence upon the hydrogen bonding interactions involving this crown ether receptor and the paraquat dication. The perturbation of the hydrogen bonding interactions within the furan-containing [2]catenane 2.4PF6 results in changes in the dynamic properties of the relative ring motions compared with those observed for the molecular components of the [2]catenane 1.4PF6.