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Published on: June 23, 2019
Spectral and thermal characterization of 3-acetyl-5-azophenyl-4-hydroxy-6-methyl-pyran-2-one and its metal complexes
Susannah Seth1, K K Aravindakshan
1P.G. and Research Department of Chemistry, Malabar Christian College, Kozhikode 673 001, Kerala, India. susannahseth@yahoo.co.in
Abstract:
Five chelates of 3-acetyl-5-azophenyl-4-hydroxy-6-methyl-pyran-2-one (phenylazo dehydroacetic acid) with Cr(III), Fe(III), Ni(II), Cu(II) and Zn(II) have been synthesized and characterized by elemental analysis, magnetic susceptibility measurements, electronic, (1)H NMR, FAB mass, IR-spectral and thermal (TG/DTG) analytical techniques. In the present work it has been found that oxygen of the deprotonated OH group and one of the azo-nitrogens of the ligand take part in coordination. The Cr(III), Fe(III) and Ni(II) complexes were found to be having octahedral geometry and the Cu(II) and Zn(II) tetrahedral.
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