Molecular alignment of ammonia studied by electron-ion-ion coincidence spectroscopy
(2005) In Journal of Chemical Physics 122(11).- Abstract
- Electron-ion-ion coincidence measurements carried out at discrete resonances near the N 1s threshold in ammonia are reported. The measured coincidence spectra show clear alignment of the molecule upon resonant core-electron excitation. The coincidence data are analyzed to extract information about the molecule in the excited state by simulating the alignment and the dissociation processes. Dynamic changes in molecular geometry are found as the photon energy is scanned through the N 1s -> 4a(1) resonance, whereas for the N 1s -> 2e state the geometry and kinetic energy released upon dissociation remain unchanged. The alignment of the core-excited molecules is found to be preserved even in two-step dissociation processes.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/246476
- author
- Lindgren, Andreas LU ; Gisselbrecht, Mathieu LU ; Burmeister, F ; de Brito, AN ; Kivimäki, A and Ristinmaa Sörensen, Stacey LU
- organization
- publishing date
- 2005
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Chemical Physics
- volume
- 122
- issue
- 11
- article number
- 114306
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000228389900024
- scopus:18744400871
- pmid:15836214
- ISSN
- 0021-9606
- DOI
- 10.1063/1.1861453
- language
- English
- LU publication?
- yes
- id
- b4280e3c-4b72-42ba-b7a1-5078524fa538 (old id 246476)
- date added to LUP
- 2016-04-01 11:49:14
- date last changed
- 2024-06-17 22:10:02
@article{b4280e3c-4b72-42ba-b7a1-5078524fa538, abstract = {{Electron-ion-ion coincidence measurements carried out at discrete resonances near the N 1s threshold in ammonia are reported. The measured coincidence spectra show clear alignment of the molecule upon resonant core-electron excitation. The coincidence data are analyzed to extract information about the molecule in the excited state by simulating the alignment and the dissociation processes. Dynamic changes in molecular geometry are found as the photon energy is scanned through the N 1s -> 4a(1) resonance, whereas for the N 1s -> 2e state the geometry and kinetic energy released upon dissociation remain unchanged. The alignment of the core-excited molecules is found to be preserved even in two-step dissociation processes.}}, author = {{Lindgren, Andreas and Gisselbrecht, Mathieu and Burmeister, F and de Brito, AN and Kivimäki, A and Ristinmaa Sörensen, Stacey}}, issn = {{0021-9606}}, language = {{eng}}, number = {{11}}, publisher = {{American Institute of Physics (AIP)}}, series = {{Journal of Chemical Physics}}, title = {{Molecular alignment of ammonia studied by electron-ion-ion coincidence spectroscopy}}, url = {{http://dx.doi.org/10.1063/1.1861453}}, doi = {{10.1063/1.1861453}}, volume = {{122}}, year = {{2005}}, }