Temperature study of resonance intermolecular interaction in the aliphatic crystals using spectra of IR-absorption

V. D. Danchuk, A. P. Kravchuk, S. P. Makarenko, G. A. Puchkovskaya, S. Chazhengina, E. Kotelnikova

Результат исследований: Научные публикации в периодических изданияхстатья в журнале по материалам конференциинаучнаярецензирование

1 цитирование (Scopus)

Выдержка

In this work, on the example of odd-numbered normal paraffins and α-olefins we propose a mechanism which explains the temperature dependence of the magnitude of Davydov splitting Δν1,2 of the bands of scissoring and rocking vibrations of methylene chains of long-chain compounds with frequencies 1465 and 720 cm-1, respectively. This mechanism is connected with damping of the intramolecular vibrational excitons in crystals due to their interaction with orientational defects of the lattice which emerge as a result of excitation of librational-rotational degrees of freedom of organic molecules in the region of the phase transition of order - orientational disorder type. Good agreement was observed between theoretical and experimental results.

Язык оригиналаанглийский
Страницы (с-по)185-189
Число страниц5
ЖурналProceedings of SPIE - The International Society for Optical Engineering
Том4938
DOI
СостояниеОпубликовано - 1 дек 2001
СобытиеSelected Papers from the International Conference on Spectroscopy of Molecules and Crystals - Chernihiv, Украина
Продолжительность: 23 июн 200130 июн 2001

Ключевые слова

    Предметные области Scopus

    • Электроника, оптика и магнитные материалы
    • Физика конденсатов
    • Прикладные компьютерные науки
    • Прикладная математика
    • Электротехника и электроника

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    title = "Temperature study of resonance intermolecular interaction in the aliphatic crystals using spectra of IR-absorption",
    abstract = "In this work, on the example of odd-numbered normal paraffins and α-olefins we propose a mechanism which explains the temperature dependence of the magnitude of Davydov splitting Δν1,2 of the bands of scissoring and rocking vibrations of methylene chains of long-chain compounds with frequencies 1465 and 720 cm-1, respectively. This mechanism is connected with damping of the intramolecular vibrational excitons in crystals due to their interaction with orientational defects of the lattice which emerge as a result of excitation of librational-rotational degrees of freedom of organic molecules in the region of the phase transition of order - orientational disorder type. Good agreement was observed between theoretical and experimental results.",
    keywords = "α-olefin, Davydov splitting, IR-spectra, Odd-numbered normal paraffin, The phase transition",
    author = "Danchuk, {V. D.} and Kravchuk, {A. P.} and Makarenko, {S. P.} and Puchkovskaya, {G. A.} and S. Chazhengina and E. Kotelnikova",
    year = "2001",
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    journal = "Proceedings of SPIE - The International Society for Optical Engineering",
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    Temperature study of resonance intermolecular interaction in the aliphatic crystals using spectra of IR-absorption. / Danchuk, V. D.; Kravchuk, A. P.; Makarenko, S. P.; Puchkovskaya, G. A.; Chazhengina, S.; Kotelnikova, E.

    В: Proceedings of SPIE - The International Society for Optical Engineering, Том 4938, 01.12.2001, стр. 185-189.

    Результат исследований: Научные публикации в периодических изданияхстатья в журнале по материалам конференциинаучнаярецензирование

    TY - JOUR

    T1 - Temperature study of resonance intermolecular interaction in the aliphatic crystals using spectra of IR-absorption

    AU - Danchuk, V. D.

    AU - Kravchuk, A. P.

    AU - Makarenko, S. P.

    AU - Puchkovskaya, G. A.

    AU - Chazhengina, S.

    AU - Kotelnikova, E.

    PY - 2001/12/1

    Y1 - 2001/12/1

    N2 - In this work, on the example of odd-numbered normal paraffins and α-olefins we propose a mechanism which explains the temperature dependence of the magnitude of Davydov splitting Δν1,2 of the bands of scissoring and rocking vibrations of methylene chains of long-chain compounds with frequencies 1465 and 720 cm-1, respectively. This mechanism is connected with damping of the intramolecular vibrational excitons in crystals due to their interaction with orientational defects of the lattice which emerge as a result of excitation of librational-rotational degrees of freedom of organic molecules in the region of the phase transition of order - orientational disorder type. Good agreement was observed between theoretical and experimental results.

    AB - In this work, on the example of odd-numbered normal paraffins and α-olefins we propose a mechanism which explains the temperature dependence of the magnitude of Davydov splitting Δν1,2 of the bands of scissoring and rocking vibrations of methylene chains of long-chain compounds with frequencies 1465 and 720 cm-1, respectively. This mechanism is connected with damping of the intramolecular vibrational excitons in crystals due to their interaction with orientational defects of the lattice which emerge as a result of excitation of librational-rotational degrees of freedom of organic molecules in the region of the phase transition of order - orientational disorder type. Good agreement was observed between theoretical and experimental results.

    KW - α-olefin

    KW - Davydov splitting

    KW - IR-spectra

    KW - Odd-numbered normal paraffin

    KW - The phase transition

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    U2 - 10.1117/12.486655

    DO - 10.1117/12.486655

    M3 - Conference article

    VL - 4938

    SP - 185

    EP - 189

    JO - Proceedings of SPIE - The International Society for Optical Engineering

    JF - Proceedings of SPIE - The International Society for Optical Engineering

    SN - 0277-786X

    ER -