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 конференции

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

Отпечаток

Order disorder transitions
Alkenes
Excitons
Paraffin
Paraffins
Olefins
Crystal
Absorption
Damping
Phase transitions
Defects
Crystals
Molecules
Exciton
Odd number
paraffins
Temperature Dependence
Interaction
methylene
alkenes

Предметные области Scopus

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

Цитировать

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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 конференции

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

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VL - 4938

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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

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