Authors:
R. Mrozek University of Marie Curie-Skłodowska Faculty of Chemistry Marie Curie-Skłodowska Sq. 2 20-031 Lublin Poland Marie Curie-Skłodowska Sq. 2 20-031 Lublin Poland

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Z. Rzączyńska University of Marie Curie-Skłodowska Faculty of Chemistry Marie Curie-Skłodowska Sq. 2 20-031 Lublin Poland Marie Curie-Skłodowska Sq. 2 20-031 Lublin Poland

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M. Sikorska-Iwan University of Marie Curie-Skłodowska Faculty of Chemistry Marie Curie-Skłodowska Sq. 2 20-031 Lublin Poland Marie Curie-Skłodowska Sq. 2 20-031 Lublin Poland

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Abstract  

The thermal decomposition behaviour of the manganese(II) complexes with glycine: Mn(gly)Cl2(H2O)2, Mn(gly)2Cl2, Mn(gly)Br2(H2O)2, Mn(gly)2Br2(H2O)2 was investigated by means of TG-DTG-DTA, Hi-Res-TA and DSC techniques. The evolved gas analysis was carried out by means of the coupled TG-FTIR system. Heating of the complexes results first in the release of water molecules. Next, the multi-stage decomposition process with degradation of glycine ligand occurs. Water, carbon dioxide and ammonia were detected in the gaseous products of the complexes decomposition. The temperature of NH3 evolution from the complexes is higher than from free glycine. The final residue in the air atmosphere is Mn2O3 which transforms into Mn3O4 at 930C. In a nitrogen atmosphere, the complexes decompose into MnO.

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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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