Abstract
The enthalpies of combustion and vaporization at 298.15 K of theω-alkanediols were determined with a CRMT rocking calorimeter equipped with a micro-bomb and a Tian-Calvet calorimeter equipped with a Knudsen effusion cell, respectively. The enthalpies of formation in the condensed and gaseous phases and the enthalpies of atomization are calculated. They depend linearly on the number of carbon atoms. Furthermore, the results permit derivation of the enthalpy of an intermolecular hydrogen bond in liquidω-alkanediols and calculation of mean enthalpies of the C-C and C-OH bonds. All these thermochemical quantities are discussed in relation to the structural particulars of the molecules.
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