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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 ; 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
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
2007-08-13 11:44:40
date last changed
2017-01-01 06:58:28
@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          = {http://dx.doi.org/10.1016/S0301-0104(02)00622-5},
  volume       = {282},
  year         = {2002},
}