Rotaxane and pseudorotaxane based on cucurbituril and anchored to a meso-tetraphenyl porphyrin
Journal of Inclusion Phenomena and Macrocyclic Chemistry
373 - 380
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Water soluble rotaxane and pseudorotaxane based on cucurbituril and anchored to a meso-tetraphenyl porphyrin have been synthesized and characterized by spectroscopic methods (1H-NMR, 13C-NMR and UV), and by elemental analysis, and mass spectrometry. The preliminary results of the pH-driven switching properties of rotaxane investigated through 1H-NMR spectroscopy are reported. These results were compared with those obtained from a model porphyrin, which was prepared by the de-threading cucurbituril from pseudorotaxane under basic conditions. © Springer 2006.