Complexes of carbohydrates with metal cations. VIII. Lanthanide-induced shifts in the P.M.R. spectra of some methyl glycosides and 1,6-anhydrohexoses

Abstract

Addition of lanthanide ions to aqueous solutions of some methyl glycosides and 1,6-anhydrohexoses causes shifts of the signals in their p.m.r. spectra. The approximate location of the cation in the complexes was determined and an attempt was made to explain the shifts in terms of contact and pseudocontact interactions.