The self-assembly of [n]pseudorotaxanes

Authors:
  • PAPeter R. Ashton
    Peter R. Ashton
  • DPDouglas Philip
    Douglas Philip
  • NSNeil Spencer
    Neil Spencer
  • JSJ. Fraser Stoddart
    J. Fraser Stoddart
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Abstract
An acyclic oligomeric polyether in which four tetraethylene glycol units are located between five hydroquinol rings, with the two terminal rings carrying benzyl ether groups, self-assembles in solution with one and two molar equivalents of a tetracationic cyclobis(paraquat-p-phenylene) macrocycle to afford, respectively and selectively, a [2]pseudorotaxane and a [3]pseudorotaxane.