Download file (1.18MB)
Download as zip (1.14MB)

コレクション

引用

説明:

Langmuir monolayers of didodecylmelamine (2C12mela) on thymine aqueous solutions were studied by in situ heterodyne-detected vibrational sum frequency generation (HD-VSFG) spectroscopy. The HD-VSFG spectrum of the monolayer on a 10 mM thymine aqueous solution exhibited a positive band at 1665 cm−1, a negative band at 1710 cm−1, and an extremely broad, positive band at the low wavenumber side (2600-2850 cm−1) of the CH, NH, and OH stretching region. The three bands were assigned to the 4-carbonyl, 2-carbonyl, and strongly hydrogen-bonded NH stretching modes of thymine. The signs of the bands indicate that thymine molecules were oriented with the oxygen atoms of the 4-carbonyl pointing downward, the oxygen atoms of the 2-carbonyl pointing upward, and the hydrogen atoms of NH groups of thymine pointing upward along the interface normal, respectively. The spectral data, supported by finite-cluster spectral simulations, favor a polymer-like supramolecular structure over trimeric models.

権利情報:

• In Copyright
  

  This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Shuhei Yamada, Katsuhiko Ariga, Taka-aki Ishibashi; Hydrogen-bonded supramolecular assembly of didodecylmelamine and thymine at the air/water interface studied by heterodyne-detected vibrational sum frequency generation. J. Chem. Phys. 28 September 2026; 165 (12): 124907 and may be found at https://doi.org/10.1063/5.0350367.

キーワード: Hydrogen bond, supramolecular assembly, air-water interface, heterodyne-detected vibrational sum frequency generation, monolayer, molecular recognition

刊行年月日: 2026-09-28

出版者: AIP Publishing

掲載誌:

• The Journal of Chemical Physics (ISSN: 00219606) vol. 165 issue. 12 124907

研究助成金:

• Japan Society for the Promotion of Science JP19K05362
• Japan Society for the Promotion of Science JP22K05016
• Japan Society for the Promotion of Science JP26K22762

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.8630

公開URL: https://doi.org/10.1063/5.0350367

関連資料:

その他の識別子:

連絡先:

更新時刻: 2026-09-29 08:53:31 +0900

MDRでの公開時刻: 2026-09-29 10:40:50 +0900