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New method for determination of vaporization and sublimation enthalpy of aromatic compounds at 298.15 K using solution calorimetry technique and group-additivity scheme
Aleksey V. Buzyurov,Vladimir B. Novikov,Timur A. Mukhametzyanov,Ruslan N. Nagrimanov,Boris N. Solomonov,Y Fedorova,Mikhail A. Varfolomeev +6 more
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TLDR
In this article, a new method for determination of vaporization/sublimation enthalpies of aromatic compounds directly at T = 298.15 K was developed, which is based on the general relationship between vaporization enthalpy and solvation of the studied compound in any solvent.Abstract:
Abstract In this work a new method for determination of vaporization/sublimation enthalpies of aromatic compounds directly at T = 298.15 K was developed. This method is based on the general relationship between vaporization/sublimation enthalpy and enthalpies of solution and solvation of the studied compound in any solvent. According to this method the procedure for determination of vaporization (liquids) or sublimation (solids) enthalpy includes measurement of the solution enthalpy of the compound in a selected solvent and calculation of the solvation enthalpy for this system. A group-additivity scheme for calculation of solvation enthalpies is proposed. The solvation enthalpy of compound is estimated from the solvation enthalpy of parent aromatic or heteroaromatic compound and contributions of the substituent groups. Limiting solution enthalpies of 34 aromatic compounds (substituted benzenes, naphthalenes, biphenyls, pyrene, anthracene and pyridines) in carbon tetrachloride, benzene, acetonitrile and N,N-dimethylformamide were measured in the present work at 298.15 K. Vaporization/sublimation enthalpies of 78 aromatic and heteroaromatic compounds were determined directly at 298.15 K using experimentally measured solution enthalpies and predicted values of solvation enthalpies. The results are in good agreement with available literature data.read more
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Journal ArticleDOI
An approach for the calculation of vaporization enthalpies of aromatic and heteroaromatic compounds at 298.15 K applicable to supercooled liquids
TL;DR: In this paper, an approach for the calculation of the vaporization enthalpies of aromatic and heteroaromatic compounds at T =298.15 K with accuracy competitive with experiment was proposed.
Journal ArticleDOI
Enthalpies of fusion and enthalpies of solvation of aromatic hydrocarbons derivatives: Estimation of sublimation enthalpies at 298.15 K
Boris N. Solomonov,Ruslan N. Nagrimanov,Mikhail A. Varfolomeev,Aleksey V. Buzyurov,Timur A. Mukhametzyanov +4 more
TL;DR: In this paper, the authors measured enthalpies of solution at infinite dilution of a number of aromatic hydrocarbons derivatives in benzene at 298.15 K and showed that these values are approximately equal.
Journal ArticleDOI
Enthalpies of solution, enthalpies of fusion and enthalpies of solvation of polyaromatic hydrocarbons: Instruments for determination of sublimation enthalpy at 298.15K
Boris N. Solomonov,Mikhail A. Varfolomeev,Ruslan N. Nagrimanov,Timur A. Mukhametzyanov,Vladimir B. Novikov +4 more
TL;DR: In this article, a simple method for calculation of solvation enthalpies of polyaromatic hydrocarbons (PAHs) in various solvents at 298.15 K was proposed.
Journal ArticleDOI
New aspects in the thermochemistry of solid-liquid phase transitions of organic non-electrolytes
TL;DR: In this paper, the relationship between the fusion enthalpies of aromatic compounds at the melting temperature and the solution enthpies in benzene at 298.15 K is investigated.
References
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Critically Evaluated Thermochemical Properties of Polycyclic Aromatic Hydrocarbons
TL;DR: In this article, experimental data for the enthalpies of combustion used to calculate enthalPies of formation in the condensed state, combined with sublimation, vaporization, and fusion, are critically evaluated.