Chiral [MnII MnIII 3 M'] (M'=NaI , CaII , MnII ) and [MnII MnIII 6 NaI 2 ] 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 [MnII MnIII 3 M'] (M'=NaI , CaII , MnII ) or enneanuclear [MnII MnIII 6 NaI 2 ] 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.