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  Hyperfine structure and lifetime of the C 2Σ+, v=0 state of CH

Ubachs, W., Meijer, G., Meulen, J. J. t., & Dymanus, A. (1986). Hyperfine structure and lifetime of the C 2Σ+, v=0 state of CH. The Journal of Chemical Physics, 84(6), 3032-3041. doi:/10.1063/1.450284.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000C-2296-4 Version Permalink: https://hdl.handle.net/21.11116/0000-000C-2297-3
Genre: Journal Article

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1.450284.pdf (Publisher version), 921KB
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1985
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 Creators:
Ubachs, Wim, Author
Meijer, Gerard1, Author           
Meulen, J. J. ter, Author
Dymanus, A., Author
Affiliations:
1University of Nijmegen, ou_persistent22              

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 Abstract: From a laser induced fluorescence (LIF) experiment on a molecularbeam of CH, we have obtained the b and c hyperfine constants, the γ and γD spin‐rotation constants as well as accurate values for the rotational constants B, D, and H for the C 2Σ+, v=0 state. From measurements of the linewidths, that are partially caused by predissociation, and by comparing relative line intensities, we determined different lifetimes for upper (F1) and lower (F2) ρ‐doublet states of the C 2Σ+ state. For the F1 states we find a constant lifetime of 3.7±1.0 ns, that is independent of N, while for the F2 states we observed an increase in lifetime for higher N up to 8.0±1.5 ns for N=11.

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Language(s): eng - English
 Dates: 1985-10-021985-12-031986-03-15
 Publication Status: Issued
 Pages: 10
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: /10.1063/1.450284
 Degree: -

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Title: The Journal of Chemical Physics
  Abbreviation : J. Chem. Phys.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Institute of Physics
Pages: 10 Volume / Issue: 84 (6) Sequence Number: - Start / End Page: 3032 - 3041 Identifier: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226