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2 Polish Journal of Chemistry

2 1998

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Synthesis and spectral characterization of Mn(II), Fe(III), Co(II), Ni(II) and Cu(II) complex produced from the template reaction of diacetyloxime

El-Tabl A.S., Kashar T.I.

Polish Journal of Chemistry

1998

Vol. 72, nr 3

519-526

A new series of Mn(II), Fe(III), Co(II), Ni(II) and Cu(II) complexes obtained by the template reaction of diacetyloxime and 1,2-diaminopropane with metal ions have been synthesized and characterized by elemental analyses, IR, VIS-UV, electrical conductivity, magnetic moment and ESR measurements. ESR spectrum of Cu(II) complex exhibits an axial type symmetry d(x(2)-y(2)) with covalent bond character. ESR spectrum of Ni(I) at 77K formed by exposing the Ni(II) complex to ionizing radiation, points on d(x(2)-y(2)) ground state. ESR spectrum of Fe(III) complex presents a low spin (57)Fe(I=1/2), d(5), configuration with D(z)(2)) ground state.

Synthesis and characterization of Zn(II), Cd(II) and Hg(II) complexes of isonicotinoyl hydrazone derived from orthohydroxybenzeneazoethylacetoacetate

Kashar T.I., El-Tabl A.S., El-Bahnasawy R.M.

Polish Journal of Chemistry

1998

Vol. 72, nr 9

2037-2044

Mononuclear and binuclear Zn(II), Cd(II) and Hg(II) complexes of orthohydroxybenzeneazoethylacetoacetate isonicotinoyl hydrazone (H3L), have been synthesized and characterized by elemental analyses, IR, (1)H NMR and VIS-UV spectra, conductance and thermal analyses. The ligand behaves as tetradentate in mononuclear complexes and hexadentate in binuclear complexes. The molar conductance of the complexes has been discussed.