Thermal analysis study of some transition metal complexes by TG and DSC methods |
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Authors: | M. Sekerci F. Yakuphanoglu |
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Affiliation: | (1) Department of Chemistry, Firat University Faculty of Arts and Sciences, Elazig, Turkey;(2) Department of Physics, Firat University Faculty of Arts and Sciences, Elazig, Turkey |
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Abstract: | The thermodynamic and thermal properties of [Cu(L)2·Cl2], [Ni(L)2]·Cl2, [Co(L)2·Cl2]; L=1,2-bis(o-aminophenoxy)ethane (BAFE), complexes have been investigated. The thermal decomposition of the complexes took place in two distinct steps in endothermic reaction up to 700°C. The activation energy E, the entropy change S#, enthalpy H change and Gibbs free energy change G# were calculated from the results of thermogravimetry analysis (TG) and heat capacity from the results of differential scanning calorimetry (DSC). It was found that the thermal stabilities and activation energies of the complexes follow the order Ni(II)>Cu(II)>Co(II) and ECo<ENi<ECu, respectively.This revised version was published online in November 2005 with corrections to the Cover Date. |
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Keywords: | transition metal complexes thermal analysis thermodynamic parameters |
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