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University of Illinois Urbana-Champaign

FTMW spectra of CH3OC(O)NCO and CH3OC(O)N3

Watanabe, Shinichiro

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https://hdl.handle.net/2142/100733

Description

Title
FTMW spectra of CH3OC(O)NCO and CH3OC(O)N3
Author(s)
Watanabe, Shinichiro
Contributor(s)
  • Kuze, Nobuhiko
  • Kawashima, Yoshiyuki
Issue Date
2018-06-18
Keyword(s)
Structure determination
Date of Ingest
  • 2018-08-17T16:09:38Z
  • 2018-12-12T22:38:31Z
Abstract
The rotational spectra of methoxycarbonyl isocyanate ( CH3OC(O)NCO) and methyl azidoformate (CH3OC(O)N3) in the ground vibrational state were observed by molecular beam-Fourier transform microwave spectroscopy. Observed spectral lines for a-type transitions were assigned. Splittings of the spectral lines were observed by the internal rotation of the CH3 group and the hyperfine structure of the 14N atom. Comparison of the observed spectroscopic constants with the calculated ones led to the conclusion that the assigned spectrum was due to the syn-syn form that NCO or N3 group. Determined parameters by the spectral analysis of methoxycarbonyl isocyanate were rotational, centrifugal distortion and nuclear electric quadrupole coupling constants including the potential barrier V3 to internal rotation of the methyl group. At this stage, we could not analyze the complicate nuclear electric quadrupole coupling splittings of the observed spectrum of methyl azidoformate due to the hyperfine structure.
Publisher
International Symposium on Molecular Spectroscopy
Type of Resource
text
Genre of Resource
Conference Paper / Presentation
Language
eng
Permalink
http://hdl.handle.net/2142/100733
DOI
10.15278/isms.2018.ML06
Copyright and License Information
Copyright 2018 Shinichiro Watanabe

Owning Collections

Abstracts & Presentations - 2018 International Symposium on Molecular Spectroscopy PRIMARY