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Metal chelates of some transition and non-transition metal ions with Schiff base derived from isatin witho-phenylenediamine

Metallchelate einiger Übergangs- und Nichtübergangsmetallionen mit Isatin-o-Phenylendiamin-Schiff-Basen

  • Anorganische Und Physikalische Chemie
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Summary

New Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Pb(II) chelates of the Schiff base derived from isatin witho-phenylenediamine have been synthesized and characterized on the basis of elemental analyses, electronic, IR and1H NMR spectra, and also by aid of molar conductivity and magnetic moment measurements. It has been found that the Schiff base behaves as ONNO tetradentate dibasic ligand forming chelates with 1:1 (metal:ligand) stoichiometry. Square planar environment is suggested for nickel(II) chelate. All the metal chelates show non-electrolytic behaviour.

Zusammenfassung

Es wurden neue Chelate von Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II), Cd(II) und Pb(II) mit Schiff-Basen aus Isatin undo-Phenylendiamin hergestellt und mittels Elementaranalysen, Elektronen-, IR- und1H-NMR-Spektroskopie, sowie durch Messung der molaren Leitfähigkeit und der magnetischen Momente charakterisiert. Es wurde festgestellt, daß sich die Schiff-Base als vierzähniger zweibasischer ONNO-Ligand verhält, wobei 1:1-stöchiometrische Metall:Ligand-Komplexe gebildet werden. Für das Nickel(II)-Chelat wird eine quadratisch-planare Geometrie vorgeschlagen. Alle untersuchten Metallchelate zeigen ein nicht-elektrolytisches Verhalten.

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Authors and Affiliations

  1. Chemistry Department, Faculty of Science, Minia University, El-Minia, Egypt

    Aly M. A. Hassaan

  2. Chemistry Department, Faculty of Science, Alexandria University, Alexandria, Egypt

    Mohamed A. Khalifa

Authors
  1. Aly M. A. Hassaan
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  2. Mohamed A. Khalifa
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Hassaan, A.M.A., Khalifa, M.A. Metal chelates of some transition and non-transition metal ions with Schiff base derived from isatin witho-phenylenediamine. Monatsh Chem 124, 803–808 (1993). https://doi.org/10.1007/BF00816402

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  • DOI: https://doi.org/10.1007/BF00816402

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