Synthesis, characterization and chemical properties of 1-((E)-2-pyridinylmethylidene)semicarbazone manganese(II) and iron(II) complexes

► Structural investigation of MnII and FeII semicarbazone complexes. ► Structure of MnII complex is distorted with rhombic gyromagnetic tensors. ► FeII complex is tetra-coordinated and suffers ligand substitution in water.