Synthesis and characterization of mixed ligand complexes of Cr (II), Cu (II) and Ni (II) metals containing DMG and dicarboxylic acids as ligands

The organic ligand contain nitrogen, oxygen and carbonyl group were used for preparation of metal ligand mixed chelated complexes. Mixed ligand complexes of nickel (II), copper (II) and Chromium (II) metals with DMG and dicarboxylic acid acids such as oxalic acid & phthalic acid. The formed metal ligand mixed complexes were characterized by molar conductivity measurements, micro elemental analysis, UV- visible spectroscopy, Infra red spectroscopy of these complexes. The complexes are of (1:1:1) (Metal: Ligand: Ligand) Stoichiometry. The structural analysis indicates a four co-ordinated [M (DMG) (Oxalate)] & [M (DMG) (PTH)] Chromophore and distorted tetrahedral geometry and may be square planer geometry metal and ligand molecules. The magnetic properties were determined by using Gouy balance method. The magnetic moment was found to be in between 3.20 BM to 4.88 BM. These value is calculated by using spin only formula.

Author(s): Sonaji V. Gayakwad, Satish B. Maulage and Mahendra N. Lokhande

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