Synthesis, structural characterization and electrochemical evaluation of schiff base transition metal complexes with ceftazidime

Derya Tarinc, Harun Muslu, Mustafa Cesme, Ayegül Gölcü*, Mehmet Tumer, Sibel A. Ozkan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In this study, transition metals (Cu(II), Co(II), Ni(II), Fe(III) and Ru(III)), complexes of Schiff base derived from (6R,7R,Z)-7-(2-(2-aminothiazol-4-yl)-2-(2-carboxypropan-2-yloxyimino)acetamido)-8-oxo-3-(pyridinium- ylmethyl)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylate, Ceftazidime; CFZ) and p-dimethyl amino benzaldehyde (DAB) were prepared and characterized by the analytical and spectroscopic methods. The analytical data show the composition of the metal complex to be [M(CFZ-DAB)Cln]Cl, where CFZ-DAB is the Schiff base ligand and n=1 for Cu(II), Co(II), Ni(II) and n=2 for Fe(III) and Ru(III) complexes. The conductance data indicate that all the complexes are strong-electrolytes. The compound (CFZ-DAB) behaves as a tridentate ligand. But, obtained complexes have mononuclear nature. The electrochemical properties of the metal complexes were investigated by cyclic voltammetry (CV) using glassy carbon electrode. The oxidation/reduction of metal complexes was irreversible/reversible and exhibited diffusion controlled process depending on pH. The dependence of intensities of currents and potentials on pH, concentration, scan rate, nature of the buffer was investigated. The oxidation/reduction mechanism was proposed and discussed.

Original languageEnglish
Pages (from-to)319-332
Number of pages14
JournalCurrent Analytical Chemistry
Volume9
Issue number2
DOIs
Publication statusPublished - 2013
Externally publishedYes

Keywords

  • Ceftazidime
  • Cyclic voltammetry
  • Schiff base complexes

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