テラヘルツ時間領域・中赤外吸収分光を用いた、弱い水素結合の研究

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Author: 村上, 公佑介ほか

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Publication date: 2013-08

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Note (General)：: We have investigated THz and mid-IR absorption features of weak hydrogen bond formed between dimethylsulfoxide (DMSO) molecules in cyclohexane. The IR...

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Material Type: 文書・図像類
Title: テラヘルツ時間領域・中赤外吸収分光を用いた、弱い水素結合の研究
Author/Editor: 村上, 公佑介
青池, 祐樹
水野, 和子
山本, 晃司
福井, 一俊
谷, 正彦
Author Heading: 村上, 公佑介
青池, 祐樹
水野, 和子
山本, 晃司
福井, 一俊
谷, 正彦
Publication Date: 2013-08
Publication Date (W3CDTF): 2013-08
Alternative Title: Investigation of weak hydrogen bond using terahertz time-domain spectroscopy and mid-IR absorption
Periodical title: 遠赤外領域開発研究
No. or year of volume/issue: 14
Volume: 14
Pages: 51-57
Text Language Code: jpn
Target Audience: 一般
Note (General): We have investigated THz and mid-IR absorption features of weak hydrogen bond formed between dimethylsulfoxide (DMSO) molecules in cyclohexane. The IR band due to the S=O stretching mode shows two bands in the region from 1050～1100 cm-1, the ratios of which are dependent on the concentration of DMSO. These bands are well described two bands at 1072 and 1083 cm-1, which are assigned to the S=O stretching modes of a DMSO monomer and a DMSO dimer, respectively. In ab initio quantum calculation we obtained stable structures of DMSO dimers, which have IR-active intermolecular vibrational modes originating in weak hydrogen bond of S=O…H-C. We observed that the broad THz absorption band is present in DMSO solution and that the THz absorption is enhanced as concentration increase of DMSO solution. Therefore, we directly show that weak hydrogen bonds are formed between DMSO molecules in solution by THz spectroscopy.
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ