Synthesis and characterization of binuclear mixed ligand chelates

الملخص EN

Three new cobalt(II), Nickel(II) and Copper(II) binuclear chelates with the general chemical formula; [M2LlL2(OH)2(H20)4].nH20, in which M represents either Co(II),Ni(II) or Cu(II) ions, LI = Catechol, L2 = Benzoin and n equals 2 or 7 water molecules.

These chelates have been synthesized and investigated by elemental analysis (C and H), molar conductance measurements, infrared and electronic spectra.

The elemental analysis data satisfied the formation of 2 : 1 : 1 [M : L : L-] ratio.

The molar conductance measurements reveal the presence of non-electrolytic nature.

The infrared spectral data show that the chelation may take place through the oxygen of the hydroxyls and the carbonyl group in the ligand moiety.

The electronic spectral data suggest the existence of an octahedral geometry for all chelates.