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Predissociation of the 4p pi L-1 Pi Rydberg state of carbon monoxide

Cacciani, P ; Brandi, F ; Sprengers, JP ; Johansson, Ann LU ; L'Huillier, Anne LU orcid ; Wahlström, Claes-Göran LU and Ubachs, W (2002) In Chemical Physics 282(1). p.63-73
Abstract
Time-domain and frequency-domain spectroscopic experiments have been performed on the (4ppi)L(1)Pi, v = 0 Rydberg state in three isotopomers of carbon monoxide. Accurate values for the excited state lifetimes of the f-parity components have been determined: tau((CO)-C-12-O-16) = 1.08 +/- 0.05 ns, tau((CO)-C-13-O-16) = 72 +/- 10 ps and tau((CO)-C-13-O-18) = 29 +/- 6 ps. The spectral resolution in the frequency-domain experiment goes as far as the limit imposed by the natural lifetime; Q-branch lines, or f-parity components of the heavier isotopes, are resolved for the first time. Highly accurate transition frequencies are determined in a molecular beam experiment using comparison and interpolation with a saturated iodine reference standard.... (More)
Time-domain and frequency-domain spectroscopic experiments have been performed on the (4ppi)L(1)Pi, v = 0 Rydberg state in three isotopomers of carbon monoxide. Accurate values for the excited state lifetimes of the f-parity components have been determined: tau((CO)-C-12-O-16) = 1.08 +/- 0.05 ns, tau((CO)-C-13-O-16) = 72 +/- 10 ps and tau((CO)-C-13-O-18) = 29 +/- 6 ps. The spectral resolution in the frequency-domain experiment goes as far as the limit imposed by the natural lifetime; Q-branch lines, or f-parity components of the heavier isotopes, are resolved for the first time. Highly accurate transition frequencies are determined in a molecular beam experiment using comparison and interpolation with a saturated iodine reference standard. The results reveal a number of perturbations and predissociation mechanisms, displaying a high degree of complexity in the energetic region of the 4p Rydberg states of CO with strong isotopic effects. (C) 2002 Elsevier Science B.V. All rights reserved. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Chemical Physics
volume
282
issue
1
pages
63 - 73
publisher
Elsevier
external identifiers
  • wos:000177263300007
  • scopus:0037102926
ISSN
0301-0104
DOI
10.1016/S0301-0104(02)00622-5
language
English
LU publication?
yes
id
86d80b61-788c-4295-a475-aff397c8ea7e (old id 332113)
date added to LUP
2016-04-01 16:11:39
date last changed
2022-01-28 18:01:13
@article{86d80b61-788c-4295-a475-aff397c8ea7e,
  abstract     = {{Time-domain and frequency-domain spectroscopic experiments have been performed on the (4ppi)L(1)Pi, v = 0 Rydberg state in three isotopomers of carbon monoxide. Accurate values for the excited state lifetimes of the f-parity components have been determined: tau((CO)-C-12-O-16) = 1.08 +/- 0.05 ns, tau((CO)-C-13-O-16) = 72 +/- 10 ps and tau((CO)-C-13-O-18) = 29 +/- 6 ps. The spectral resolution in the frequency-domain experiment goes as far as the limit imposed by the natural lifetime; Q-branch lines, or f-parity components of the heavier isotopes, are resolved for the first time. Highly accurate transition frequencies are determined in a molecular beam experiment using comparison and interpolation with a saturated iodine reference standard. The results reveal a number of perturbations and predissociation mechanisms, displaying a high degree of complexity in the energetic region of the 4p Rydberg states of CO with strong isotopic effects. (C) 2002 Elsevier Science B.V. All rights reserved.}},
  author       = {{Cacciani, P and Brandi, F and Sprengers, JP and Johansson, Ann and L'Huillier, Anne and Wahlström, Claes-Göran and Ubachs, W}},
  issn         = {{0301-0104}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{63--73}},
  publisher    = {{Elsevier}},
  series       = {{Chemical Physics}},
  title        = {{Predissociation of the 4p pi L-1 Pi Rydberg state of carbon monoxide}},
  url          = {{https://lup.lub.lu.se/search/files/4598201/2368944.pdf}},
  doi          = {{10.1016/S0301-0104(02)00622-5}},
  volume       = {{282}},
  year         = {{2002}},
}