SYNTHESIS, SPECTRAL CHARCTERISATION AND ANTIMICROBIAL ACTIVITIES OF Cu (II), Co (II), Cr (III), COMPLEXES DERIVED FORM 4-AMINOANTIPYRINE AND DIHYDROPYRIMIDINONE OF BENZALDEHYDE

10.22376/ijpbs.2019.10.1.p1-12

Volume 5 Issue 3 2014 (July- September) SYNTHESIS, SPECTRAL CHARCTERISATION AND ANTIMICROBIAL ACTIVITIES OF Cu (II), Co (II), Cr (III), COMPLEXES DERIVED FORM 4-AMINOANTIPYRINE AND DIHYDROPYRIMIDINONE OF BENZALDEHYDE A new series of transition metal complexes Cr (III), Co (II), and Cu (II) were synthesized from the Schiff base ligand derived from 4-aminoantipyrine and Ethyl 4- methyl –oxo-6-phenylhexahyro pyrimidine-5-carboxylate. The structural features were derived and confirmed by elemental analysis, melting point, molar conductance, Mass, Uv-Vis, FTIR, lessThan sup greaterThan 1 lessThan /sup greaterThan H-NMR, lessThan sup greaterThan 1 lessThan /sup greaterThan C-NMR, and ESR spectroscopy. The data supported that the complexes have the composition of ML lessThan sub greaterThan 2 lessThan /sub greaterThan type. The Uv-Vis, magnetic susceptibility and ESR spectral data of the complexes suggest that, the square-planar geometry around the central metal ion co-ordination through the ring carbonyl oxygen and nitrogen atom of the azomethine –C=N group. The antimicrobial screening tests were recorded by the disc diffusion method, proving more activity complexes as compared to free ligand. D.MOHANAMBAL AND S. ARULANTONY Transition Metal Complex, 4-aminoantipyrine, Antimicrobial, DHPMs,Schiff base, 600-611