КФУ. Карточка публикации. 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

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2020

Язык

английский

Авторы, сотрудники КФУ

Зиганшин Марат Ахмедович, автор

Мухаметзянов Тимур Анварович, автор

Соломонов Борис Николаевич, автор

Библиографическое описание на языке оригинала

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.

Аннотация

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.

Ключевые слова

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

Название журнала

THERMOCHIMICA ACTA

URL

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

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https://repository.kpfu.ru/?p_id=241038

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Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Зиганшин Марат Ахмедович	ru_RU
dc.contributor.author	Мухаметзянов Тимур Анварович	ru_RU
dc.contributor.author	Соломонов Борис Николаевич	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/?p_id=241038	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	Статьи в зарубежных журналах и сборниках	ru_RU