A New Polydentate Ligand Aand it’s Cu (II) Complex – Synthesis and Characterization
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Date
2007-08
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Addis Ababa Universty
Abstract
Dinuclear Copper (II) complex of a bis-chelating 4,6 – Bis{[((imidazo-5-yl) methyl)
hydrazo] ethyl }-benzene-1,3-diol was synthesized and characterized by using
conductivity, magnetic susceptibility measurement, IR and UV-VIS spectra. BIMHEBD
was synthesized by the condensation of 2, 4-dihydroxy-5-acetylacetophenone
dihydrazone (DAAD) with 4(5) – imidazo carboxo aldehyde. The ligand behaves as
dibasic bis-tridentate chelating system through ONN-ONN donor sequence. Subnormal
magnetic moment of the complex indicates the possibility of antiferomagnetic interaction
through a possible superexchange mechanism.
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Keywords
Cu (II)