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ASIAN JOURNAL OF RESEARCH IN CHEMISTRY
Year : 2017, Volume : 10, Issue : 3
First page : ( 291) Last page : ( 296)
Print ISSN : 0974-4169. Online ISSN : 0974-4150.
Article DOI : 10.5958/0974-4150.2017.00047.5

Synthesis, characterization, equilibrium studies and antibacterial studies of Co(II) complex with schiff base ligand derived from pyridoxal and 2,4-Dichlorobenzohydrazide

Kavitha R.1, Reddy Ch. Venkata Ramana2,*, Sireesha B.1

1Department of Chemistry, Nizam College, OU, Basheerbagh, Hyderabad-500001, Telangana, India.

2Department of Chemistry, Jawaharlal Nehru Technological University Hyderabad, Kukatpally, Hyderabad-500085, Telangana, India.

*Corresponding Author E-mail: vrr9@yahoo.com

Online published on 22 September, 2017.

Abstract

The Co(II) metal (M) complex of 2,4-dichloro-N-((3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl)methylene)benzohydrazide (L) was synthesized and characterized by elemental analysis, molar conductance, magnetic moment measurements, LC-MS, IR, TGA and UV spectral studies. Irving-Rossetti titration method was employed to determine the acid dissociation constant of ligand and the stability constant of Co(II) complex in 70% (v/v) DMF-water medium at 0.1 M KNO3 ionic strength and 303K temperature. The spectroanalytical data indicate the composition of the complexes to be 1:2 (ML2) with octahedral geometry. The ligand and the complex were screened for their antibacterial activity against Gram positive and Gram negative bacteria using agar well diffusion method.

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Keywords

Pyridoxal, Schiff base, Complex, Stability constant, Antibacterial activity.

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