Abstract
SPECTROPHOTOMETRIC DETERMINATION OF BENZOFURAZON-4-CARBOXALDEHYDE ISONICOTONYL HYDRAZINE COMPLEX WITH COPPER (II) AND ITS BIOLOGICAL ACTIVITY

Dr. Shobha Borhade*

ABSTRACT

Benzofurazan-4-carboxaldehyde isonicotinoyl hydrazone (BFCIH) has been synthesized. Complex of benzofurazan-4-carboxaldehyde isonicotinoyl hydrazone (BFCIH) with transition metal Cu (II) has been synthesized in methanol medium. The formation of the complex are endothermic processes. The ligand was characterized by melting point, elemental analysis, absorption spectra and antimicrobial activity while the complex was characterized by melting point, absorption spectra. A simple and sensitive spectrophotometric method was developed for transition metal complex of benzofurazan-4-carboxaldehyde isonicotinoyl hydrazone (BFCIH). The optimum condition for complete colour development have been established. The stability constant, dissociation constant & change in free energy of Cu (II) has been determined by Job’s variation & mole ratio method indicate that the M:L is 1:2. Tolerance limit of diverse ions in the determination of Cu (II) with benzofurazan-4-carboxaldehyde isonicotinoyl hydrazone (BFCIH) is investigated.

Keywords: Benzofurazan-4-carboxaldehyde isonicotinoyl hydrazone (BFCIH), Cu (II), Spectrophotometry, Antimicrobial activity.


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