Induction of chirality in porphyrin-(bis)calixarene assemblies: a mixed covalent-non-covalent vs a fully non-covalent approach

CD and UV-vis measurements were carried out to demonstrate chirality induction—promoted by chiral covalently linked groups and non-covalently bound D- and K-[Ru(phen)3]2+ enantiomers—in metallo-porphyrin–calixarene and metallo-porphyrin–bis-calixarene non-covalent assemblies, respectively.