Spectral and magnetic studies of polynuclear copper(II) complexes of Schiff base derived from ethylenediamine and ethylacetoacetate |
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Authors: | Rafat M. El-Shazly Magdy M. Bekheit Fatma I. Taha Abd-Allah Y. Tawansi |
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Affiliation: | (1) Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt;(2) Department of Physics, Faculty of Science, Mansoura University, Mansoura, Egypt |
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Abstract: | Summary The Schiff base (L), prepared by the condensation of two molecules of ethyl acetoacetate and one molecule of ethylenediamine reacts with copper(II) chloride to give poiynuclear complexes of the type Cu3L Cl6, Cu4L Cl8, Cu5L Cl10, Cu6L Cl12, Cu7L Cl14 and Cu8L Cl16. Elemental analyses, molar conductivities, magnetic susceptibilities, x-ray powder diffraction and i.r. spectral studies have been used to characterize the complexes. The i.r. spectra show that the Schiff base binds in a tetradentate manner and the spectral and magnetic studies suggest the presence of a chlorine bridge between the copper atoms. The magnetic susceptibility of the complexes follows the Curie-Weiss law. |
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