Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 102: Issue 1
Crystal structure and solid–solid phase transition of the complex (C11H18NO)2CuCl4(s)
Authors:
W. Dan College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059 Shandong Province People’s Republic of China

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Y. Di College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059 Shandong Province People’s Republic of China

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Y. Kong College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059 Shandong Province People’s Republic of China

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Q. Wang College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059 Shandong Province People’s Republic of China

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W. Yang College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059 Shandong Province People’s Republic of China

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D. Wang College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, 252059 Shandong Province People’s Republic of China

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Pages:
291–296
Online Publication Date:
05 Jan 2010
Publication Date:
01 Oct 2010
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-009-0663-6
Keywords:
(C11H18NO)2CuCl4(s); X-ray crystallography; Crystal structure; Adiabatic calorimetry; Low-temperature heat-capacity; Solid–solid phase transition
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Abstract  

The complex (C11H18NO)2CuCl4(s) was synthesized. Chemical analysis, elemental analysis, and X-ray crystallography were used to characterize the structure and composition of the complex. Low-temperature heat-capacities of the compound were measured by an adiabatic calorimeter in the temperature range from 77 to 400 K. A phase transition of the compound took place in the region of 297–368 K. Experimental molar heat-capacities were fitted to two polynomial equations of heat-capacities as a function of the reduced temperature by least square method. The peak temperature, molar enthalpy, and entropy of phase transition of the compound were calculated to be Ttrs = 354.214 ± 0.298 K, ΔtrsHm = 76.327 ± 0.328 kJ mol−1, and ΔtrsSm = 51.340 ± 0.164 J K−1 mol−1.

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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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