Partial cation and anion-yield experiments in ammonia around the N 1s ionization threshold
(2007) In Journal of Electron Spectroscopy and Related Phenomena 155(1-3). p.86-90- Abstract
- We report partial cation and anion-yield measurements around the N K edge in isolated ammonia molecules. Due to the dominance of spectator electronic decay following Rydberg excitations, fragmentation was found to be more extensive following excitation to intermediate states of Rydberg character compared to excitation of states with molecular-orbital character. Unusual stability of the NH32+ fragment produced directly above threshold by normal-Auger decay is attributed to a stable planar geometry induced by a specific electronic configuration. Hydrogen anions are not detected above threshold except following the decay of resonant doubly excited neutral states embedded in the K-shell ionization continuum.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/667501
- author
- Piancastelli, M. N. ; Guillemin, R. ; Stolte, W. C. ; Céolin, Denis LU and Lindle, D. W.
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- cations, photofragmentation, anions, photoexcitation
- in
- Journal of Electron Spectroscopy and Related Phenomena
- volume
- 155
- issue
- 1-3
- pages
- 86 - 90
- publisher
- Elsevier
- external identifiers
-
- wos:000245493900016
- scopus:33847622956
- ISSN
- 0368-2048
- DOI
- 10.1016/j.elspec.2006.11.009
- language
- English
- LU publication?
- yes
- id
- 0e808079-7f22-4b5e-9cea-dc2601f1f81c (old id 667501)
- date added to LUP
- 2016-04-01 16:38:39
- date last changed
- 2022-01-28 21:06:48
@article{0e808079-7f22-4b5e-9cea-dc2601f1f81c, abstract = {{We report partial cation and anion-yield measurements around the N K edge in isolated ammonia molecules. Due to the dominance of spectator electronic decay following Rydberg excitations, fragmentation was found to be more extensive following excitation to intermediate states of Rydberg character compared to excitation of states with molecular-orbital character. Unusual stability of the NH32+ fragment produced directly above threshold by normal-Auger decay is attributed to a stable planar geometry induced by a specific electronic configuration. Hydrogen anions are not detected above threshold except following the decay of resonant doubly excited neutral states embedded in the K-shell ionization continuum.}}, author = {{Piancastelli, M. N. and Guillemin, R. and Stolte, W. C. and Céolin, Denis and Lindle, D. W.}}, issn = {{0368-2048}}, keywords = {{cations; photofragmentation; anions; photoexcitation}}, language = {{eng}}, number = {{1-3}}, pages = {{86--90}}, publisher = {{Elsevier}}, series = {{Journal of Electron Spectroscopy and Related Phenomena}}, title = {{Partial cation and anion-yield experiments in ammonia around the N 1s ionization threshold}}, url = {{http://dx.doi.org/10.1016/j.elspec.2006.11.009}}, doi = {{10.1016/j.elspec.2006.11.009}}, volume = {{155}}, year = {{2007}}, }