A New Polydentate Ligand Aand Its Cu (ii) Complex Synthesis And Characterization

Dinuclear Copper (II) complex of a bis-chelating 4,6 – Bis{[((imidazo-5-yl) methyl)rnhydrazo] ethyl }-benzene-1,3-diol was synthesized and characterized by usingrnconductivity, magnetic susceptibility measurement, IR and UV-VIS spectra. BIMHEBDrnwas synthesized by the condensation of 2, 4-dihydroxy-5-acetylacetophenonerndihydrazone (DAAD) with 4(5) – imidazo carboxo aldehyde. The ligand behaves asrndibasic bis-tridentate chelating system through ONN-ONN donor sequence. Subnormalrnmagnetic moment of the complex indicates the possibility of antiferomagnetic interactionrnthrough a possible superexchange mechanism.

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