Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 91: Issue 1
4-Chloro-2-methoxybenzoates of heavy lanthanides(III) and yttrium(III)
Thermal, spectral and magnetic behaviour
Authors:
W. Ferenc Maria Curie-Skłodowska University Faculty of Chemistry 20-031 Lublin Poland

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A. Dziewulska-Kułaczkowska Maria Curie-Skłodowska University Faculty of Chemistry 20-031 Lublin Poland

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J. Sarzyński Maria Curie-Skłodowska University Faculty of Physics 20-031 Lublin Poland

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B. Paszkowska Maria Curie-Skłodowska University Faculty of Chemistry 20-031 Lublin Poland

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Pages:
285–292
Online Publication Date:
26 Oct 2007
Publication Date:
01 Jan 2008
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-007-8350-y
Keywords:
4-chloro-2-methoxybenzoates; complexes of rare earth; magnetic susceptibility determinations; spectrochemical and thermal stability investigations
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Abstract  

4-Chloro-2-methoxybenzoates of heavy lanthanides(III) and yttrium(III) were obtained as mono-, di-, tri-or tetrahydrates with metal to ligand ratio of 1:3 and general formula Ln(C8H6ClO3)3·nH2O, where n=1 for Ln=Er, n=2 for Ln=Tb, Dy, Tm, Y, n=3 for Ln=Ho and n=4 for Yb and Lu. The complexes were characterized by elemental analysis, FTIR spectra, TG, DTA and DSC curves, X-ray diffraction and magnetic measurements. The carboxylate group appears to be a symmetrical bidentate chelating ligand. All complexes are polycrystalline compounds. The values of enthalpy, ΔH, of the dehydration process for analysed complexes were also determined. The solubilities of heavy lanthanide(III) 4-chloro-2-methoxybenzoates in water at 293 K are of the order of 10−4 mol dm−3. The magnetic moments were determined over the range of 76–303 K. The results indicate that there is no influence of the ligand field of 4f electrons on lanthanide ions and the metal ligand bonding is mainly electrostatic in nature.

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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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