Ein doppeltes Calix[4]aren in 1,3-alternate-Konformation

Symmetry: Friend or foe?

While symmetry in molecules or supramolecular complexes is desirable from the design point of view and affords simpler NMR spectra, the study of symmetrical species by NMR is often subject to ambiguities resulting from signal degeneracy. In this paper we shall discuss different ways of breaking symmetry in order to obtain additional structural information by NMR.

A Double Calix[4]arene in a 1,3-alternate Conformation