Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 90: Issue 2
Standard molar enthalpies of formation of [RE(Gly)4(Im)(H2O)](ClO4)3 (RE=Eu, Sm)
Authors:
Y. Zhao

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J. Dong Department of Chemistry, Wuhan University, Wuhan, 430072 P. R. China

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Y. Liu Department of Chemistry, Wuhan University, Wuhan, 430072 P. R. China

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S. Qu Department of Chemistry, Wuhan University, Wuhan, 430072 P. R. China

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Pages:
565–568
Online Publication Date:
26 Feb 2007
Publication Date:
01 Nov 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-006-7900-z
Keywords:
complex of rare earth; glycine; imidazole; solution-reaction calorimetry; standard molar enthalpy of formation
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Abstract  

The two complexes, [RE(Gly)4(Im)(H2O)](ClO4)3(s)(RE = Eu, Sm), have been synthesized and characterized. The standard molar enthalpies of reaction for the following reactions, RECl3·6H2O(s)+4Gly(s)+Im(s)+3NaClO4(s) = =[RE(Gly)4(Im)(H2O)](ClO4)3(s)+3NaCl(s)+5H2O(l), were determined by solution-reaction colorimetry. The standard molar enthalpies of formation of the two complexes at T = 298.15 K were derived as ΔfHmΘ {Eu(Gly)4(Im)(H2O)}(ClO4)3(s)} = = −(3396.6±2.3) kJ mol−1 and ΔfHmΘ {Sm(Gly)4(Im)(H2O)}(ClO4)3(s)} = −(3472.7±2.3) kJ mol−1, respectively.

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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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