Synthesis, crystal structure and EPR spectra of tetraaquabis(methylisonicotinate) copper(II) disaccharinate single crystal

► A structural property of the Cu2+ ion is characterized by XRD and IR. ► EPR results show that the paramagnetic center of the Cu2+ ion is rhombic symmetry. ► The octahedral Cu2+ ion is coordinated by two monodentate mein and four aqua ligands.