Lifetime measurements on the c '(1)(4)Sigma(+)(u), v=0, 1 and 2 states of molecular nitrogen
(2001) In Chemical Physics 270(1). p.215-225- Abstract
- Excited state lifetimes of c(4)('1)Sigma (+)(u), upsilon = 0-2 states of molecular nitrogen have been determined in a laboratory investigation using a picosecond XUV laser in a pump-probe configuration. For c(4)('1)Sigma (+)(u) upsilon = 0 the lifetime is tau = 740 +/- 50 ps, for the lowest rotational states. For higher rotational states a gradual shift towards tau = 495 ps is found in agreement with previous findings that these states are subject to predissociation. For c(4)(') Sigma (+)(u) upsilon = 1 no J-dependence is found and values for two isotopomers are reported: tau = 240 ps for (NN)-N-14-N-15 = 240 ps for (NN)-N-14-N-15. For c(4)('1)Sigma (+)(u) upsilon = 2 a lifetime for the lowest rotational states (J = 0-3) was derived: tau =... (More)
- Excited state lifetimes of c(4)('1)Sigma (+)(u), upsilon = 0-2 states of molecular nitrogen have been determined in a laboratory investigation using a picosecond XUV laser in a pump-probe configuration. For c(4)('1)Sigma (+)(u) upsilon = 0 the lifetime is tau = 740 +/- 50 ps, for the lowest rotational states. For higher rotational states a gradual shift towards tau = 495 ps is found in agreement with previous findings that these states are subject to predissociation. For c(4)(') Sigma (+)(u) upsilon = 1 no J-dependence is found and values for two isotopomers are reported: tau = 240 ps for (NN)-N-14-N-15 = 240 ps for (NN)-N-14-N-15. For c(4)('1)Sigma (+)(u) upsilon = 2 a lifetime for the lowest rotational states (J = 0-3) was derived: tau = 675 +/- 50 ps; for J = 11 a lifetime of tau less than or equal to 120 ps is deduced. All values for the lifetimes including the J-dependences are explained in a model based on Rydberg-valence interaction. (C) 2001 Elsevier Science B.V. All rights reserved. (Less)
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https://lup.lub.lu.se/record/2259643
- author
- Ubachs, W ; Lang, R ; Velchev, I ; Tchang-Brillet, W. U. L ; Johansson, A ; Li, Z. S ; Lokhnygin, V and Wahlström, Claes-Göran LU
- organization
- publishing date
- 2001
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Chemical Physics
- volume
- 270
- issue
- 1
- pages
- 215 - 225
- publisher
- Elsevier
- external identifiers
-
- scopus:0035879308
- ISSN
- 0301-0104
- DOI
- 10.1016/S0301-0104(01)00378-0
- language
- English
- LU publication?
- yes
- id
- 381f5987-89f4-48d1-bbca-9e3d2ab92338 (old id 2259643)
- date added to LUP
- 2016-04-04 09:08:28
- date last changed
- 2022-01-29 08:28:12
@article{381f5987-89f4-48d1-bbca-9e3d2ab92338, abstract = {{Excited state lifetimes of c(4)('1)Sigma (+)(u), upsilon = 0-2 states of molecular nitrogen have been determined in a laboratory investigation using a picosecond XUV laser in a pump-probe configuration. For c(4)('1)Sigma (+)(u) upsilon = 0 the lifetime is tau = 740 +/- 50 ps, for the lowest rotational states. For higher rotational states a gradual shift towards tau = 495 ps is found in agreement with previous findings that these states are subject to predissociation. For c(4)(') Sigma (+)(u) upsilon = 1 no J-dependence is found and values for two isotopomers are reported: tau = 240 ps for (NN)-N-14-N-15 = 240 ps for (NN)-N-14-N-15. For c(4)('1)Sigma (+)(u) upsilon = 2 a lifetime for the lowest rotational states (J = 0-3) was derived: tau = 675 +/- 50 ps; for J = 11 a lifetime of tau less than or equal to 120 ps is deduced. All values for the lifetimes including the J-dependences are explained in a model based on Rydberg-valence interaction. (C) 2001 Elsevier Science B.V. All rights reserved.}}, author = {{Ubachs, W and Lang, R and Velchev, I and Tchang-Brillet, W. U. L and Johansson, A and Li, Z. S and Lokhnygin, V and Wahlström, Claes-Göran}}, issn = {{0301-0104}}, language = {{eng}}, number = {{1}}, pages = {{215--225}}, publisher = {{Elsevier}}, series = {{Chemical Physics}}, title = {{Lifetime measurements on the c '(1)(4)Sigma(+)(u), v=0, 1 and 2 states of molecular nitrogen}}, url = {{https://lup.lub.lu.se/search/files/5242798/2297673.pdf}}, doi = {{10.1016/S0301-0104(01)00378-0}}, volume = {{270}}, year = {{2001}}, }