KFU. Card publication. The fusion thermochemistry of rubrene and 9, 10-diphenylanthracene between 298 and 650 K: Fast scanning and solution calorimetry

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THE FUSION THERMOCHEMISTRY OF RUBRENE AND 9, 10-DIPHENYLANTHRACENE BETWEEN 298 AND 650 K: FAST SCANNING AND SOLUTION CALORIMETRY

Form of presentation

Articles in international journals and collections

Year of publication

2020

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Authors, employees of KFU

Ziganshin Marat Akhmedovich, author

Mukhametzyanov Timur Anvarovich, author

Solomonov Boris Nikolaevich, author

Bibliographic description in the original language

Bolmatenkov, D. N., Yagofarov, M. I., Mukhametzyanov, T. A., Ziganshin, M. A., & Solomonov, B. N. (2020). The fusion thermochemistry of rubrene and 9, 10-diphenylanthracene between 298 and 650 K: Fast scanning and solution calorimetry. Thermochimica Acta, 693, 178778.

Annotation

The fusion enthalpies and the heat capacities of crystalline, molten, and supercooled liquid rubrene (Tm = 603 K) and 9,10-diphenylanthracene (Tm = 523 K) were measured using fast scanning calorimetry and conventional DSC. The experimental fusion enthalpies at the melting temperature were corrected to 298.15 K according to Kirchhoff's law of thermochemistry. On the other hand, the fusion enthalpies at 298.15 K were determined from the solution enthalpies of these compounds in benzene, considering “like dissolves like” principle. The fusion enthalpies at 298.15 K obtained using independent methods were in mutual agreement. The heat capacity corrections of the fusion enthalpies of the studied non-planar polycyclic aromatic hydrocarbons to 298.15 K were found to be significantly higher than for planar polyaromatics. The features of measurement of the heat capacities of organic compounds by fast scanning calorimetry in the temperature range of notable volatility were discussed. The complete absence of the mass losses during heating-cooling cycles was found to be unnecessary condition for accurate heat capacity measurement; tolerable mass losses during the procedure were evaluated.

Keywords

Heat capacity, Fusion enthalpy, Solution enthalpy, Polycyclic aromatic hydrocarbons, Fast scanning calorimetry

The name of the journal

THERMOCHIMICA ACTA

URL

https://www.sciencedirect.com/science/article/pii/S0040603120306936

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=241038&p_lang=2

Resource files

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1_s2.0_S0040603120306936_main__1_.pdf	1,65	pdf	show / download

Full metadata record

Field DC	Value	Language
dc.contributor.author	Ziganshin Marat Akhmedovich	ru_RU
dc.contributor.author	Mukhametzyanov Timur Anvarovich	ru_RU
dc.contributor.author	Solomonov Boris Nikolaevich	ru_RU
dc.date.accessioned	2020-01-01T00:00:00Z	ru_RU
dc.date.available	2020-01-01T00:00:00Z	ru_RU
dc.date.issued	2020	ru_RU
dc.identifier.citation	Bolmatenkov, D. N., Yagofarov, M. I., Mukhametzyanov, T. A., Ziganshin, M. A., & Solomonov, B. N. (2020). The fusion thermochemistry of rubrene and 9, 10-diphenylanthracene between 298 and 650 K: Fast scanning and solution calorimetry. Thermochimica Acta, 693, 178778.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/eng/?p_id=241038&p_lang=2	ru_RU
dc.description.abstract	THERMOCHIMICA ACTA	ru_RU
dc.description.abstract	The fusion enthalpies and the heat capacities of crystalline, molten, and supercooled liquid rubrene (Tm = 603 K) and 9,10-diphenylanthracene (Tm = 523 K) were measured using fast scanning calorimetry and conventional DSC. The experimental fusion enthalpies at the melting temperature were corrected to 298.15 K according to Kirchhoff's law of thermochemistry. On the other hand, the fusion enthalpies at 298.15 K were determined from the solution enthalpies of these compounds in benzene, considering “like dissolves like” principle. The fusion enthalpies at 298.15 K obtained using independent methods were in mutual agreement. The heat capacity corrections of the fusion enthalpies of the studied non-planar polycyclic aromatic hydrocarbons to 298.15 K were found to be significantly higher than for planar polyaromatics. The features of measurement of the heat capacities of organic compounds by fast scanning calorimetry in the temperature range of notable volatility were discussed. The complete absence of the mass losses during heating-cooling cycles was found to be unnecessary condition for accurate heat capacity measurement; tolerable mass losses during the procedure were evaluated.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Heat capacity	ru_RU
dc.subject	Fusion enthalpy	ru_RU
dc.subject	Solution enthalpy	ru_RU
dc.subject	Polycyclic aromatic hydrocarbons	ru_RU
dc.subject	Fast scanning calorimetry	ru_RU
dc.title	The fusion thermochemistry of rubrene and 9, 10-diphenylanthracene between 298 and 650 K: Fast scanning and solution calorimetry	ru_RU
dc.type	Articles in international journals and collections	ru_RU