International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2578

Full Length Research Paper

Preparation and characterization of Cr(III), Mn(II), Co(III), Ni(II), Cu(II), Zn(II) and Cd(II) chelates of schiffs base derived from vanillin and 4-amino antipyrine

M. S. Suresh and V. Prakash*
Department of Chemistry, Government Arts College, Ooty, The Nilgiris, Tamil Nadu, India, 643 002.
Email: [email protected]

  •  Accepted: 21 October 2010
  •  Published: 04 November 2010

Abstract

A novel bidentate Schiff base, synthesized from 1-phenyl 2, 3-dimethyl-4-aminopyrazol-5-one (4-aminoantipyrene) and vanillin forms stable complexes with transition metal ions such as Cr (III), Mn (II), Co (II), Ni (II), Cu (II), Zn (II) and Cd (II). Their structures were investigated by elemental analysis, infrared spectroscopy, electronic spectroscopy, NMR spectroscopy; thermo gravimetric analysis and electron spin resonance spectroscopy. On the basis of the studies the coordination sites were proven to be through oxygen of the ring C = O and Nitrogen of the azomethine CH = N group. The microbiological studies revealed the anti bacterial nature of the complexes.

 

Key words: Schiff bases, metal complexes, 4-aminoantipyrine, vanillin, 1-phenyl 2, 3-dimethyl-4-aminopyrazol-5-one.