Infrared Stark spectra for a Nylon 6 film

Moeka Oshiro, Kenji Takashima, Yukio Furukawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Infrared Stark spectra for a Nylon 6 film were measured under electric fields from 0.99 to 1.5 MV/cm at 77 K using a sandwich-type cell with a BaF 2 /Al/Nylon 6/Al structure. The broad asymmetric infrared and Stark spectra observed for amide I (C[dbnd]O stretch) were fitted with three components: 1637-cm −1 band (β-sheet structure), 1645- and 1663-cm −1 bands (disordered hydrogen-bonded structures). The change in the dipole moment Δμ between the ground and first excited vibrational states for amide I (β-sheet structure) was determined to be 0.064 Df −1 , where f is a local field correction factor.

Original languageEnglish
Pages (from-to)32-36
Number of pages5
JournalChemical Physics Letters
Volume728
DOIs
Publication statusPublished - 2019 Aug 1

Keywords

  • Amide I
  • Infrared spectroscopy
  • Nylon 6
  • Vibrational Stark effect
  • β-sheet

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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