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Title: An Origin of Complicated Infrared Spectra of Perfluoroalkyl Compounds Involving a Normal Alkyl Group
Authors: Hasegawa, Takeshi  kyouindb  KAKEN_id  orcid https://orcid.org/0000-0001-5574-9869 (unconfirmed)
Shimoaka, Takafumi  kyouindb  KAKEN_id
Tanaka, Yuki
Shioya, Nobutaka
Morita, Kohei
Sonoyama, Masashi
Amii, Hideki
Takagi, Toshiyuki
Kanamori, Toshiyuki
Author's alias: 長谷川, 健
下赤, 卓史
田中, 悠基
塩谷, 暢貴
Issue Date: Jun-2015
Publisher: The Chemical Society of Japan
Journal title: Chemistry Letters
Volume: 44
Issue: 6
Start page: 834
End page: 836
Abstract: Perfluoroalkyl (Rf) compounds containing a normal alkyl group often yield highly complicated infrared (IR) spectra especially in the C–F stretching vibration (νC–F) region. To reveal the reason behind this, the IR p-polarized multiple-angle incidence resolution spectrometry (pMAIRS) is employed to measure a monolayer of CF3(CF2)9(CH2)3COOH deposited on a silicon substrate. The compound is known to spontaneously aggregate to form a molecular assembly with the closest packing, in which the molecules are oriented perpendicular to the substrate. The IR pMAIRS spectra apparently prove that the complexity of the νC–F region is due to the normal alkyl part directly connected to the Rf group because the carbons in the Rf group are vibrated as a coupled oscillator, and the oscillation of the alkyl part propagates to the Rf part along the molecular axis.
Rights: © The Chemical Society of Japan
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/218806
DOI(Published Version): 10.1246/cl.150198
Appears in Collections:Journal Articles

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