Abstract
A branched [4]rotaxane containing three switching arms with both secondary ammonium cation and aniline binding sites for threaded crown ethers was prepared. 1H NMR spectroscopy was used to show the translational isomerisation of the [4]rotaxane, and different absorption maxima and the oxidation potential for the [4]rotaxane possessing a 1,3,5-tris(4-aminophenyl)benzene centre were monitored by ultraviolet spectroscopy and electrochemical studies, respectively, as the [4]rotaxane was exposed to encircling dibenzo[24]crown-8 species.
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