Asian Journal of Research in Chemistry

Vijaya Pawar ¹, Sangeeta V. Chavan ¹, Ramesh S. Yamgar ¹, R. G. Atram ², B. R. Thorat ², Swati Bisht ², Sudhir S. Sawant ²

Affiliations
1 Department of Chemistry, Patkar College of Arts and Science, Goregaon (W), Mumbai 400 062, IN
2 P. G. Dept of Chemistry, Govt. of Maharashtra’s Ismail Yusuf College of Arts, Science and Commerce, Jogeshwari (East), Mumbai 400 060, IN

Abstract

Novel transition metal Cu(II), Ni(II), Co(II) and Zn(II) ions complexes of bidentate Schiff base ligand obtained from 4-Methyl 7-hydroxy 8-formyl coumarin, and Dimethylamino propylene diamine have been prepared and characterized by physical, spectral and analytical data. The synthesized Schiff base act as bidentate ligand for the complexation reaction with Cu(II), Ni(II), Co(II) and Zn(II) ions. The new compounds, possessing the general formula [M(L)₂.2H₂O] where [M= Cu(II), Ni(II), Co(II) and Zn(II)] show octahedral geometry. In order to evaluate the effect of metal ions upon chelation, the Schiff base and their metal complexes have been screened for antimicrobial activity. The transition metal complexes have shown enhanced antimicrobial activities as compared to Schiff base.

Keywords

Schiff Bases, 4-Methyl 7-Hydroxy 8-Formyl Coumarin, Transition Metal Complexes.

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Sangeeta V. Chavan ¹, Sudhir S. Sawant ¹, Ramesh S. Yamgar ¹

Affiliations
1 Department of Chemistry, Patkar College of Arts and Science, Goregaon (W), Mumbai 400 062, IN

Abstract

Some novel transition metal [Mn(II), Co(II), Ni(II), Cu(II), Pd(II)] complexes of multidentate Schiff base ligand obtained from semicarbazide and substituted α-benzopyronone have been prepared and characterized by physical, spectral and analytical data. The synthesized Schiff base act as tridentate ligand for the complexation reaction with Mn(II), Co(II), Ni(II), Cu(II) and Pd(II) ions. The new compounds, possessing the general formula [M(L)₂.H₂O] where [M= Mn(II), Co(II), Ni(II), Cu(II) and Pd(II)] show an octahedral geometry. In order to evaluate the effect of metal ions upon chelation, the Schiff base and their metal complexes have been screened for antimicrobial activity. The transition metal complexes have shown enhanced antimicrobial activities as compared to Schiff base.

Keywords

Schiff Bases, α-Benzopyrone, Transition Metal Complexes.

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