SYNTHESIS, THERMAL STABILITY AND KINETIC STUDIES OF COPPER(II) AND COBALT(II) COMPLEXES DERIVED FROM 4-AMINOBENZOHYDRAZIDE AND 2-MERCAPTOBENZOTHIAZOLE
Complexes of divalent transition metal ions Cu(II) and Co(II) of the formula [M(ABZH)(MBTH)Cl2(H2O)2], (M= Cu(II) and Co(ІІ), ABZH=4-Aminobenzohydrazide (L1) and MBTH = 2-mercaptobenzthiazole (L2)) have been synthesized and characterized. The structure of the two compounds has been assigned based on elemental analysis, electronic spectral, FT-IR, magnetic measurements and XRD. The thermal properties of copper(II) and cobalt(II) metal complexes in dynamic air have been analyzed via thermogravimetry (TG) and differential thermogravimetry(DTG). The kinetic analyses of the thermal decomposition for the two compounds were calculated by the Coats-Redfern and Horowitz-Metzger methods. The obtained kinetic parameters display the kinetic compensation effect.