Royal Society of Chemistry, RSC Advances, 47(11), p. 29543-29554, 2021
DOI: 10.1039/d1ra05488k
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Two calix[4]arenes with two viologen units separated by 3 or 4 carbon atoms from the macrocyclic core were synthesized and led to the formation of [3]pseudorotaxanes when combined with CB[7] or CB[8].