Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 99: Issue 1
Synthesis and thermal decomposition kinetics of two lanthanide complexes with cinnamic acid and 2,2′-Bipyridine
Authors:
L. Tian

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N. Ren Handan College Department of Chemistry Handan 056005 People’s Republic of China

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J. Zhang Hebei Normal University Experimental Center Shijiazhuang 050016 People’s Republic of China

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H. Liu Hebei University of Science and Technology College of Chemistry and Pharmacy Engineering Shijiazhuang 050018 People’s Republic of China

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S. Sun

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H. Ye

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K. Wu Hebei Normal University College of Chemistry and Material Science Shijiazhuang 050016 People’s Republic of China

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Pages:
349–356
Online Publication Date:
05 Aug 2009
Publication Date:
01 Jan 2010
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0272-4
Keywords:
Thermal decomposition mechanism; Non-isothermal kinetics; Lanthanide complexes
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Abstract  

The two complexes of [Ln(CA)3bipy]2 (Ln = Tb and Dy; CA = cinnamate; bipy = 2,2′-bipyridine) were prepared and characterized by elemental analysis, infrared spectra, ultraviolet spectra, thermogravimetry and differential thermogravimetry techniques. The thermal decomposition behaviors of the two complexes under a static air atmosphere can be discussed by thermogravimetry and differential thermogravimetry and infrared spectra techniques. The non-isothermal kinetics was investigated by using a double equal-double steps method, the nonlinear integral isoconversional method and the Starink method. The mechanism functions of the first decomposition step of the two complexes were determined. The thermodynamic parameters (ΔH≠, ΔG≠ and ΔS≠) and kinetic parameters (activation energy E and the pre-exponential factor A) of the two complexes were also calculated.

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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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