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Thermodynamic study of alkane-α,ω-diamines - evidence of odd-even pattern of sublimation properties
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SYSNO ASEP 0440781 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Thermodynamic study of alkane-α,ω-diamines - evidence of odd-even pattern of sublimation properties Author(s) Fulem, Michal (FZU-D) RID, ORCID
Růžička, K. (CZ)
Červinka, C. (CZ)
Bazyleva, A. (US)
Della Gatta, G. (IT)Source Title Fluid Phase Equilibria. - : Elsevier - ISSN 0378-3812
Roč. 371, Jun (2014), s. 93-105Number of pages 13 s. Language eng - English Country NL - Netherlands Keywords alkane-diamines ; odd–even effect ; vapor pressure ; sublimation and vaporization thermodynamic properties ; statistical thermodynamics Subject RIV BM - Solid Matter Physics ; Magnetism Institutional support FZU-D - RVO:68378271 UT WOS 000336474100010 EID SCOPUS 84898831096 DOI 10.1016/j.fluid.2014.03.013 Annotation Calculated ideal-gas heat capacities and experimental data for vapor pressure, condensed phase heatcapacities, and calorimetric vaporization enthalpies of alkane-diamines, NH2-(CH2)n-NH2(2≤n≤8), were treated simultaneously to obtain a consistent thermodynamic description. Vapor pressures were measured using the static method in the temperature range from 233 to 314 K. The thermodynamic properties for liquid–vapor equilibrium display a linear dependence on number of methylene groups n while the sublimation thermodynamic properties show an evident odd–even effect with higher values for even members of a homologous series. Based on the observed trends, the correlations allowing the prediction of the thermodynamic properties for the crystal–vapor and liquid–vapor equilibria and crystalline and ideal-gas heat capacities within the homologous series are suggested. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2015
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