Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 89: Issue 1
Kinetic analysis of thermal decomposition of some Co-complexes of three unsymmetrical vic -dioximes ligands
Model fitting and model-free method
Authors:
O. Sahin Harran University Department of Chemistry S.Urfa Turkey

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E. Tas Harran University Department of Chemistry S.Urfa Turkey

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H. Dolas Harran University Department of Chemistry S.Urfa Turkey

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Pages:
123–131
Online Publication Date:
29 Apr 2007
Publication Date:
01 Jul 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-005-7019-7
Keywords:
Arrhenius parameter; Co(II) complexes; kinetic analysis; model-fitting and model-free methods; vic-dioxime
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Abstract  

The thermal decomposition of three new reagent cyclohexylamine-p-tolylglyoxime (L1H2), tertiarybutyl amine-p-tolylglyoxime (L2H2) and secondary butylamine-p-tolylglyoxime (L3H2 and their Co-complexes were studied by both isothermal and nonisothermal methods. As expected, the complex structure of Co-complexes, different steps with different activation energies were realized in decomposition process. Model-fitting and model-free kinetic approaches were applied to nonisothermal and isothermal data. The kinetic triplet (f(α), A and E) related to nonisothermal model-fitting method can not be meaningfully compared with values obtained from isothermal method. The complex nature of the multi-step process of the studied compounds was more easily revealed using a wider temperature range in nonisothermal isoconversional method.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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