2018年5月15日
Anharmonic calculations of frequencies and intensities of O–H stretching vibrations of (R)-1,3-butanediol conformers in the fundamentals and first overtones by density functional theory
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
- ,
- ,
- 巻
- 197
- 号
- 開始ページ
- 251
- 終了ページ
- 254
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.saa.2018.02.029
- 出版者・発行元
- Elsevier B.V.
The frequencies and absorption intensities of the five kinds of conformers of 1,3-butanediol with the same carbon skeleton (GG′) were calculated by anharmonic calculation for the fundamentals and first overtones of OH stretching vibrations. The four kinds of conformers form intramolecular hydrogen bonds and one conformer did not. Intramolecular hydrogen bond formation shifted the frequency of fundamental and first overtone of H-bonding OH stretching vibration to the lower frequency. The absorption intensities of the fundamentals as well as the vibrational anharmonicities increased upon hydrogen bond formation, while the intensities of first overtones decreased. The differences of conformers were clearly seen in the frequencies of the first overtones of free OH.
- ID情報
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- DOI : 10.1016/j.saa.2018.02.029
- ISSN : 1386-1425
- SCOPUS ID : 85042630934