European Journal of Chemistry 2014, 5(3), 415-418 | doi: https://doi.org/10.5155/eurjchem.5.3.415-418.1045 | Get rights and content

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Spectroscopic and electrochemical investigations and antibacterial activity of binuclear Pd(II) and Pt(IV) complexes of newly synthesized tridentate heterocyclic compounds


Wael Hussein Hegazy (1,*)

(1) Department of Chemistry, Faculty of Science, Suez University, Suez, 43533, Egypt
(*) Corresponding Author

Received: 06 Mar 2014 | Revised: 30 Mar 2014 | Accepted: 04 Apr 2014 | Published: 30 Sep 2014 | Issue Date: September 2014

Abstract


New Pd(II) and Pt(IV) binuclear complexes with two heterocyclic Schiff base ligands of type ONO derived from condensation of salicylaldehyde with 4-aminoantipyrine have been synthesized and characterized using elemental analysis, IR, electronic absorption spectra, magnetic moments. It has been found that the stoichiometric ratio is metal:ligand (2:2) with Pd(II) or Pt(IV) ions forming binuclear complexes. The electrochemistry of the Pt complexes for Pt(IV)/Pt(II) redox couple was investigated by cyclic voltammetry. According to molar conductance, the complexes may be formulated as [Pd2(L1)2], [Pt2(L1)2(H2O)4]Cl2, [Pd2(L2)2]Cl, and [Pt2(L2)2(H2O)4]Cl3. On the basis of the magnetic moments, square planar geometry is suggested for Pd(II) complexes and octahedral geometry is suggested for Pt(IV) complexes. The antibacterial activity of the ligands and complexes were assessed against Gram‐positive bacteria B. subtilis and S. aureus and Gram‐negative bacteria S. typhi and Salmonella spp.


Keywords


Antibiotics; Pd(II) complexes; Pt(IV) complexes; Binuclear complexes; Spectroscopic studies; Heterocyclic Schiff bases

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DOI: 10.5155/eurjchem.5.3.415-418.1045

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Funding information


Natural and Microbial Products Division, National Research Center, Egypt

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How to cite


Hegazy, W. Eur. J. Chem. 2014, 5(3), 415-418. doi:10.5155/eurjchem.5.3.415-418.1045
Hegazy, W. Spectroscopic and electrochemical investigations and antibacterial activity of binuclear Pd(II) and Pt(IV) complexes of newly synthesized tridentate heterocyclic compounds. Eur. J. Chem. 2014, 5(3), 415-418. doi:10.5155/eurjchem.5.3.415-418.1045
Hegazy, W. (2014). Spectroscopic and electrochemical investigations and antibacterial activity of binuclear Pd(II) and Pt(IV) complexes of newly synthesized tridentate heterocyclic compounds. European Journal of Chemistry, 5(3), 415-418. doi:10.5155/eurjchem.5.3.415-418.1045
Hegazy, Wael. "Spectroscopic and electrochemical investigations and antibacterial activity of binuclear Pd(II) and Pt(IV) complexes of newly synthesized tridentate heterocyclic compounds." European Journal of Chemistry [Online], 5.3 (2014): 415-418. Web. 24 Jul. 2021
Hegazy, Wael. "Spectroscopic and electrochemical investigations and antibacterial activity of binuclear Pd(II) and Pt(IV) complexes of newly synthesized tridentate heterocyclic compounds" European Journal of Chemistry [Online], Volume 5 Number 3 (30 September 2014)

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European Journal of Chemistry 2014, 5(3), 415-418 | doi: https://doi.org/10.5155/eurjchem.5.3.415-418.1045 | Get rights and content

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