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2 Polish Journal of Chemistry

2 1999

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Sythesis and characterization of novel copper (II) complexes of dehydroacetic acid thiosemicarrbazone

El-Tabl A., Kashar T., El-Bahnasawy R., El-Monsef Ibrahim A.

Polish Journal of Chemistry

1999

vol. 73 nr 2

245-254

Dehydroacetic acid thiosemicarbazone and its copper(II) complexes have been synthesized and characterized by elemental analyses, IR, VIS-UV, magnetic susceptibility, conductivity, DTA and ESR spectra. Molar conductance indicates that the complexes are non-electrolytes except for [Cu(H2L)]SO4×2H20. The ESR spectra of the complexes show axial type symmetry with gII>g1>2.00, indicating dx2-y2 ground state with significant covalent bond character.

Mononuclear and Binuclear Copper(II) Complexes of Phenylhydrazoacetylacetone Isonicotinoylhydrazone

El-Bahnasawy R., El-Tabl A., El-Shereafy E., Kashar T., Issa Y.

Polish Journal of Chemistry

1999

Vol. 73, nr 12

1925-1935

Copper(II) complexes of phenylhydrazoacetylacetone isonicotinoylhydrazone (PHAH) have been prepared and characterized by elemental and thermal analyses, conductance, magnetic moment, IR and UV-VIS spectra. The conductances indicate that the complexes are nonelectrolytes. In neutral solutions, mononuclear complexes have been obtained, however, in the presence of ammonia, the mononuclear comlex and binuclear complexes have been isolated.