Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 37: Issue 11-12
Thermal studies of some mixed complexes of Mn(II) with picrate and nitrogen donors
Authors:
A. I. El-Said Chemistry Department, Faculty of Science Assiut University Assiut Egypt

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A. A. M. Aly Chemistry Department, Faculty of Science Assiut University Assiut Egypt

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A. S. A. Zidan Chemistry Department, Faculty of Science Assiut University Assiut Egypt

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Pages:
2473–2481
Online Publication Date:
24 Jul 2005
Publication Date:
01 Nov 1991
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01912794
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The thermal decompositions of nine mixed ligand complexes of Mn(II) containing picrate and mono- or bidentate nitrogen ligands were studied by thermogravimetry. The kinetics of decomposition were examined by using the Coats-Redfern and Horowitz-Metzger equations; the decomposition was in all cases of the first order. The activation energies and other kinetic parameters were computed. The decomposition mechanisms exhibited a similar character for all the studied compounds. It was observed from the TG curves that the complexes decomposed to give six-coordinate intermediates, formed from substitution of the picrate into the inner coordination sphere. These intermediates decomposed to Mn(II) picrate and finally to Mn2O3.

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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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