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J. Chem. Soc., Chem. Commun., 1991, 1677 - 1679, DOI: 10.1039/C39910001677
The self-assembly of [n]pseudorotaxanes
Peter R. Ashton, Douglas Philip, Neil Spencer and J. Fraser Stoddart
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.
