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13C mono-substituted isotopologues of propyne (H3CCCH): Investigating the acetylenic CH stretch perturbation
Doney, Kirstin D.
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https://hdl.handle.net/2142/104492
Description
- Title
- 13C mono-substituted isotopologues of propyne (H3CCCH): Investigating the acetylenic CH stretch perturbation
- Author(s)
- Doney, Kirstin D.
- Contributor(s)
- Linnartz, Harold
- Zhao, Dongfeng
- Issue Date
- 2019-06-17
- Keyword(s)
- Vibrational structure/frequencies
- Date of Ingest
- 2019-07-15T22:17:02Z
- 2020-01-25T19:30:27Z
- Abstract
- "The acetylenic CH stretch ($\nub{1}$) fundamental band of propyne is known to have a ""double-crossing"" type perturbation that shifts the $K’$-subbands out of normal order. To further investigate this perturbation, we present a combined experimental and \textit{ab initio} study on the jet-cooled high-resolution infrared spectra of the $\nub{1}$ fundamental band of the three mono-substituted $^{13}$C isotopologues of propyne: $^{13}$CH$_3$$^{12}$C$\equiv$$^{12}$CH, $^{12}$CH$_3$$^{13}$C$\equiv$$^{12}$CH, and $^{12}$CH$_3$$^{12}$C$\equiv$$^{13}$CH. The experimental spectra are recorded using continuous wave cavity ringdown spectroscopy (cw-CRDS), with the isotopologues produced at natural abundance in a continuous supersonic expansion of regular propyne diluted in argon and helium. The $K’$ = 0 and 1 subbands of all three isotopologues are measured near 3330~cm$^{-1}$.\footnote{K.D. Doney \textit{et al.}, J. Phys. Chem. A 122 (2), 582 (2018)}"
- Publisher
- International Symposium on Molecular Spectroscopy
- Type of Resource
- text
- Genre of Resource
- Conference Paper / Presentation
- Language
- eng
- Permalink
- http://hdl.handle.net/2142/104492
- DOI
- https://doi.org/10.15278/isms.2019.ML01
- Copyright and License Information
- Copyright 2019 Kirstin D. Doney
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