A chiral Mn(IV) complex and its supramolecular assembly: Synthesis, characterization and properties

The open air reaction of the chiral Schiff base ligand H2L, prepared by the condensation of Lphenylalaninol and 5-bromosalicylaldehyde, with MnII(CH3COO)24H2O yielded dark brown complex [MnIVL2]05 DMF (1). Compound 1 was characterized by elemental analysis, IR, UV–visible, CD and EPR spectroscopy, cyclic voltammetry and room temperature magnetic moment determination. Singlecrystal X-ray analysis revealed that compound 1 crystallises in the monoclinic P21space group with six mononuclear [MnIVL2] units in the asymmetric unit along with three solvent DMF molecules. In the crystal structure, each Mn(IV) complex, acting as the building unit, undergoes supramolecular linking through CHO bonds leading to an intricate hydrogen bonding network.