Synthesis, structure and magnetic property of a dinuclear cobalt(II/III) complex with a reduced Schiff base ligand

A dinuclear mixed valence cobalt(II/III) complex, [(N-3)(CoL)-L-III(mu-CH3COO)Co-II(N3)]center dot CH3OH with a N2O4 donor compartmental reduced Schiff base ligand, H2L [(1,3-propanediyl)bis(iminomethylene)bis(6-ethoxyphenol)], has been synthesized and characterized by spectral and elemental analyses. Cobalt(III) is placed in the inner N2O2 compartment whereas cobalt(II) is present in the outer O-4 compartment of the ligand. Structure of the complex is confirmed by single crystal X-ray crystallography. The magnetic susceptibility measurement confirms that the complex belongs to localized class-I mixed valence system with isolated S = 3/ 2 ion and shows Curie-Weiss paramagnetism. (C) 2020 Elsevier Ltd. All rights reserved.