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Synthesis, Characterisation, and Biological Evaluation of Zn(II) Complex with Tridentate (NNO Donor) Schiff Base Ligand


Affiliations
1 Department of Chemistry, Sadhu Vaswani College, Bairagarh, Bhopal 462030, India
2 Department of Chemistry, Govt. P.G. College Rajouri, Rajouri, Jammu and Kashmir 185131, India
3 P.G. Department of Chemistry, University of Jammu, Jammu and Kashmir 180006, India
4 School of Biotechnology, University of Jammu, Jammu and Kashmir 180006, India
 

The present paper deals with the synthesis and characterization of metal complex of tridentate Schiff base ligand derived from the inserted condensation of 2-aminobenzimidazole (1H-benzimidazol-2-amine) with salicylaldehyde (2-hydroxybenzaldehyde) in a 1 : 1 molar ratio. Using this tridentate ligand, complex of Zn(II) with general formula ML has been synthesized. The synthesized complex was characterized by several techniques using molar conductance, elemental analysis, FT-IR, and mass and 1HNMR spectroscopy. The elemental analysis data suggest the stoichiometry to be 1 : 1 [M : L]. The complex is nonelectrolytic in nature as suggested by molar conductance measurements. Infrared spectral data indicate the coordination between the ligand and the central metal ion through deprotonated phenolic oxygen, imidazole nitrogen of benzimidazole ring, and azomethine nitrogen atom. Spectral studies suggest tetrahedral geometry for the complex.The pure compound, synthesized ligand, and metal complex were screened for their antimicrobial activity.
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  • Synthesis, Characterisation, and Biological Evaluation of Zn(II) Complex with Tridentate (NNO Donor) Schiff Base Ligand

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Authors

Nayaz Ahmed
Department of Chemistry, Sadhu Vaswani College, Bairagarh, Bhopal 462030, India
Mohd Riaz
Department of Chemistry, Govt. P.G. College Rajouri, Rajouri, Jammu and Kashmir 185131, India
Altaf Ahmed
P.G. Department of Chemistry, University of Jammu, Jammu and Kashmir 180006, India
Madhulika Bhagat
School of Biotechnology, University of Jammu, Jammu and Kashmir 180006, India

Abstract


The present paper deals with the synthesis and characterization of metal complex of tridentate Schiff base ligand derived from the inserted condensation of 2-aminobenzimidazole (1H-benzimidazol-2-amine) with salicylaldehyde (2-hydroxybenzaldehyde) in a 1 : 1 molar ratio. Using this tridentate ligand, complex of Zn(II) with general formula ML has been synthesized. The synthesized complex was characterized by several techniques using molar conductance, elemental analysis, FT-IR, and mass and 1HNMR spectroscopy. The elemental analysis data suggest the stoichiometry to be 1 : 1 [M : L]. The complex is nonelectrolytic in nature as suggested by molar conductance measurements. Infrared spectral data indicate the coordination between the ligand and the central metal ion through deprotonated phenolic oxygen, imidazole nitrogen of benzimidazole ring, and azomethine nitrogen atom. Spectral studies suggest tetrahedral geometry for the complex.The pure compound, synthesized ligand, and metal complex were screened for their antimicrobial activity.