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Energetics of intra- and intermolecular bonds in ω-alkanediols. III. Thermochemic...
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Energetics of intra- and intermolecular bonds in ω-alkanediols. III. Thermochemical study of 1,6-hexanediol, 1,7-heptanediol, 1,8-octanediol, 1,9-nonanediol, and 1,10-decanediol at 298.15 K
作者:
P. Knauth,
R. Sabbah,
期刊:
Canadian Journal of Chemistry
(NRC Available online 1990)
卷期:
Volume 68,
issue 5
页码: 731-734
ISSN:0008-4042
年代: 1990
DOI:10.1139/v90-115
出版商: NRC Research Press
数据来源: NRC
摘要:
The enthalpies of combustion and sublimation or vaporization of the title compounds were determined on milligram samples and used to derive, at 298.15 K, the enthalpies of formation in the gaseous phase and the enthalpies of atomization. The previous conclusions drawn from the investigation of the lower ω-alkanediols were confirmed: the enthalpy of a hydrogen bond in solid ω-alkanediols amounts to 27 kJ mol−1and the intramolecular C—C and C—OH bond enthalpies to 343.2 and 819.5 kJ mol−1, respectively. The enthalpies of fusion and the triple point temperatures of the ω-alkanediolsare reported and discussed.Keywords: ω-alkanediols, enthalpies of formation, triple point temperatures, differential thermal analysis, calorimetry.
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