Article ID Journal Published Year Pages File Type
1228974 Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 2015 6 Pages PDF
Abstract

•Metal complexes of Mn(II), Co(II), Ni(II), Cu(II).•Synthesized by condensation of β-diketone.•All the synthesized compound characterized by spectroscopy techniques.•The complexes was found to be 1:2 (metal:ligand).•The antibacterial and antifungal activities of the ligand and its metal complexes.

A series of metal complexes of Mn(II), Co(II), Ni(II), Cu(II), have been synthesized with newly synthesized biologically active macrocyclic ligand. The ligand was synthesized by condensation of β-diketone 1-(4-chlorophenyl)-3-(2-hydroxyphenyl)propane-1,3-dione and o-phenylene diamine. All the complexes were characterized by elemental analysis, molar conductivity, magnetic susceptibility, thermal analysis, X-ray diffraction, IR, 1H-NMR, UV–Vis spectroscopy and mass spectroscopy. From the analytical data, stoichiometry of the complexes was found to be 1:2 (metal:ligand). Thermal behavior (TG/DTA) and kinetic parameters suggest more ordered activated state in complex formation. All the complexes are of high spin type and six coordinated. On the basis of IR, electronic spectral studies and magnetic behavior, an octahedral geometry has been assigned to these complexes. The antibacterial and antifungal activities of the ligand and its metal complexes, has been screened in vitro against Staphylococcus aureus, Escherichia coli and Aspergillus niger, Trichoderma respectively.

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Physical Sciences and Engineering Chemistry Analytical Chemistry
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