Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 68: Issue 3
Synthesis And Characterization Of Complexes Of Rare Earth Elements With 1,1-Cyclobutanedicarboxylic Acid
Authors:
Z. Rzączyńska Maria Curie-Skłodowska University Department of General Chemistry, Faculty of Chemistry 20-031 Lublin Poland 20-031 Lublin Poland

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and
A. Bartyzel Maria Curie-Skłodowska University Department of General Chemistry, Faculty of Chemistry 20-031 Lublin Poland 20-031 Lublin Poland

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Pages:
937–949
Online Publication Date:
01 Nov 2004
Publication Date:
01 Jun 2002
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1016194623364
Keywords:
complexes; 1,1-cyclobutanedicarboxylates of rare earth elements; IR spectra; thermal analysis
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Abstract  

The complexes of yttrium and lanthanide with 1,1-cyclobutanedicarboxylic acid of the formula: Ln2(C6H6O4)3⋅nH2O, where n=4 for Y, Pr–Tm, n=5 for Yb,Lu, n=7 for La, Ce have been studied. The solid complexes have colours typical of Ln3+ ions. During heating in air they lose water molecules and then decompose to the oxides, directly (Y, Ce, Tm, Yb) or with intermediate formation. The thermal decomposition is connected with released water (313–353 K), carbon dioxide, hydrocarbons(538–598 K) and carbon oxide for Ho and Lu. When heated in nitrogen they dehydrate to form anhydrous salt and next decompose to the mixture of carbon and oxides of respective metals. IR spectra of the prepared complexes suggest that the carboxylate groups are bidentate chelating.

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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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