Chiral [MnIIMnIII3M'] (M' = NaI, CaII, MnII) and [MnIIMnIII6NaI2] clusters built from an enantiomerically pure Schiff base: synthetic, chiroptical and magnetic properties

Abstract

From the reaction of manganese halides with the chiral Schiff bases obtained by condensation of o-vanillin and (R)- or (S)-phenylglycinol, 11 complexes based on pentanuclear cages with trigonal bipyramidal [MnIIMnIII3M'] (M'=NaI, CaII, MnII) or enneanuclear [MnIIMnIII6NaI2] cores were synthesized. Structural, supramolecular chirality, and optical properties were explored. The magnetic properties of related systems were reviewed, and the magnetic response of the new systems was rationalized to the bond parameters.