Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 47: Issue 3
Caracterisation par analyse calorimetrique differentielle des complexes entre LiAlH4 et les ethers-couronnes 12-C-4, 15-C-5, dicyclohexano-18-C-6
Comportement thermique des phases solides et de certains de leurs solvates avec le benzène
Authors:
J. P. Bastide Laboratoire de Thermochimie Minérale - U.R.A. 116 CNRS Institut National des Sciences Appliquées de Lyon 20, avenue A. Einstein 69621 Villeurbanne France

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K. Ezzemouri Laboratoire de Thermochimie Minérale - U.R.A. 116 CNRS Institut National des Sciences Appliquées de Lyon 20, avenue A. Einstein 69621 Villeurbanne France

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J. M. Létoffé Laboratoire de Thermochimie Minérale - U.R.A. 116 CNRS Institut National des Sciences Appliquées de Lyon 20, avenue A. Einstein 69621 Villeurbanne France

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P. Claudy Laboratoire de Thermochimie Minérale - U.R.A. 116 CNRS Institut National des Sciences Appliquées de Lyon 20, avenue A. Einstein 69621 Villeurbanne France

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A. Bouamrane Laboratoire de Thermochimie Minérale - U.R.A. 116 CNRS Institut National des Sciences Appliquées de Lyon 20, avenue A. Einstein 69621 Villeurbanne France

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Pages:
833–846
Online Publication Date:
05 Aug 2005
Publication Date:
01 Sep 1996
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01981818
Keywords:
crown-ethers (CE); 12-C-4; 15-C-5; DC 18-C-6anti; DC 18-C-6syn; DSC; LiAlH4-CE complexes; glass-transition; solvates
Restricted access

The thermal behaviour of complexes [Li+-EC](AlH4)− withEC=12-C-4, 15-C-5, DC 18-C-6 (cis-anti-cis andcis-syn-cis isomers) was investigated by Differential Scanning Calorimetry (DSC). These complexes were prepared as solids from benzene solutions. Pure EC and several solvated species [Li+-EC](AlH4)−·nC6H6 (EC=15-C-5, DC 18-C-6syn) were also studied. DSC has revealed various phenomena. Solid-solid transitions were observed before melting for [Li+-EC](AlH4)− withEC=12-C-4 and 15-C-5. They are probably explained by small molecular modifications strongly dependent on the thermal history of the sample. A glass-transition was found for the pure crown-ether DC 18-C-6anti, the complex [Li+-EC](A1H4)− withEC=DC-18-C-6anti and the two solvates mentioned above.

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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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