Calix[6]arene-based pseudorotaxanes: a solid state structural investigation

Abstract

Triphenylureido-calix[6]arene derivatives act as a heteroditopic and asymmetrical wheel. They are able to form pseudorotaxanes with dialkylviologen salts. These supramolecular complexes are stabilised by several non-covalent interactions whose nature and role has been evidenced through single crystal X-ray diffraction and computational methods.