Kinetics of thermal decomposition of mixed-ligand nikkel(II) and copper(II) complexes of 4-acyl pyrazolone derivative and pyridine |
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Authors: | G. -C. Xu L. Zhang L. Liu G. -F. Liu D. -Z. Jia |
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Affiliation: | (1) Institute of Applied Chemistry, Xinjiang University, Urumqi, 830046, P.R. China |
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Abstract: | Thermal behaviors of two mixed-ligand complexes, [Ni(PMPP-SAL)(Py)3] and [Cu(PMPP-SAL)Py]·MeOH, (PMPP-SAL=1-phenyl-3-methyl-4-(salicylidene hydrazide)-propenylidene-pyrazolone-5, Py=pyridine), were studied by TG-DTG-DTA in dynamic air atmosphere. The complexes show the loss of pyridine molecule is followed by the decomposition of the PMPP-SAL anion and give respective metal oxides as residues. Meanwhile, the Ozawa-Flynn-Wall model-free analyses and multivariate non-linear regressions were applied to perform single and overall steps optimization. Kinetic parameters were given and the most probable mechanism functions were suggested in this study. |
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Keywords: | kinetic studies mixed-ligand complexes non-linear regression thermal analyses |
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