A dimeric Mn(III) complex of a quadridentate Schiff base ligand. Synthesis, structure and ferromagnetic exchange

Abstract

The synthesis, crystal structure and magnetic properties of [Mn(III)L(H2O)](2)(H2O)(ClO4) (1) (L = N,N'-bis(rac-5-chlorosalicylidenato)-1,2-diaminopropane) are reported. Compound 1 consists of a structurally dinuclear system in which two Mn ions are bridged by the oxygen atoms of mu-phenoxo ligands. Low temperature magnetic susceptibility measurements show a ferromagnetic intra-dimer interaction with J = +1.75 cm(-1), g = 2.01 and alpha = -0.32.