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Abstract
This work had been carried out to investigate the coordination behaviour of two newly synthesized azodyes with different coordination sites, towards some bi- and trivalent metal ions like Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II). The two azodye ligands and their solid chelates were prepared and subjected to many analytical techniques such as elemental analyses, mass spectroscopy, ESR, IR, 1H NMR and solid reflectance spectra, magnetic moment, molar conductance, XRD and thermal analyses techniques. The chelates were found to have octahedral geometry. The two ligands and their metal complexes were subjected to thermal analyses (TG and DTG) and the different activation thermodynamic parameters, namely E*, {u2206}H*, {u2206}S* and {u2206}G* were calculated from their corresponding DTG curves to throw more light on the nature of changes accompanying the thermal decomposition process of these complexes. The biological activity (antimicrobial and antibreastic cancer activity) of the newly synthesized azodye ligands and their metal complexes were also screened