Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 53: Issue 1
Synthesis and Thermal Decomposition of Complexes of Rare Earth Bromides with Alanine
Authors:
Sun Tong-Shan Shandong University Department of Chemistry Jinan, Shandong 250100 Jinan, Shandong 250100

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Xiao Yu-Mei Shandong University Department of Chemistry Jinan, Shandong 250100 Jinan, Shandong 250100

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Wang Da-Qing Shandong Teacher's University Testing Center Jinan, Shandong 250014 People's Republic of China Jinan, Shandong 250014 People's Republic of China

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Wang Feng-Lian Shandong University Department of Chemistry Jinan, Shandong 250100 Jinan, Shandong 250100

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Zhao Yu-Ting Shandong University Department of Chemistry Jinan, Shandong 250100 Jinan, Shandong 250100

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Pages:
285–296
Online Publication Date:
03 Nov 2004
Publication Date:
01 May 1998
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1010113014504
Keywords:
alanine; complexes of rare earth bromides; synthesis; TG-DTG; thermal decomposition
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Abstract  

The complexes of rare earth bromides with alanine, REBr33AlanH2O (RE=Ce, Pr, Sm, Eu, Gd and Tb, n=3; RE=Dy and Y, n=2.5 Ala=alanine), were prepared and characterized by means of chemical analysis, elemental analysis, molar conductivity, thermogravimetry, IR spectra and X-ray diffraction. The thermal decomposition in N2 of these complexes was studied by means of TG-DTG techniques from ambient temperature to 1000C. During heating, the hydrated complexes of Ce, Pr and Y lose waters in one step, but the hydrated complexes of Sm, Eu, Gd, Tb and Dy lose waters in two steps. Then anhydrous complexes lose 2.5 alanine molecules except the complexes of Eu which lose three alanine molecules. Apparently, only be complex of Eu has an intermediate, EuOBr. All complexes finally decompose to oxides.

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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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