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Dissociation of deuteromethane following carbon 1s core ionization

Kukk, Edwin; Rius i Riu, Jaume LU ; Stankiewicz, Marek; Hatherly, Paul; Erman, Peter; Rachlew, Elisabeth; Winiarczyk, Piotr; Huttula, Marko and Aksela, Seppo (2002) In Physical Review A (Atomic, Molecular and Optical Physics) 66(1).
Abstract
Energy-resolved electron-ion coincidence spectra of the deuteromethane molecule were measured following ionization by narrow-band synchrotron radiation. The ion mass spectra were recorded in coincidence with the outer and inner valence photoelectrons and with the normal Auger electrons from the decay of the carbon 1s core hole. Complementary noncoincidence ion mass spectra were measured below and above the C 1s threshold. The fragmentation patterns of the singly and doubly ionized deuteromethane under different ionization conditions are examined. Carbon core ionization is shown to open new photodissociation pathways not available in the valence ionization photon energy regime. With the aid of ab initio quantum chemistry calculations, a... (More)
Energy-resolved electron-ion coincidence spectra of the deuteromethane molecule were measured following ionization by narrow-band synchrotron radiation. The ion mass spectra were recorded in coincidence with the outer and inner valence photoelectrons and with the normal Auger electrons from the decay of the carbon 1s core hole. Complementary noncoincidence ion mass spectra were measured below and above the C 1s threshold. The fragmentation patterns of the singly and doubly ionized deuteromethane under different ionization conditions are examined. Carbon core ionization is shown to open new photodissociation pathways not available in the valence ionization photon energy regime. With the aid of ab initio quantum chemistry calculations, a two-step model of the dissociation following core ionization is proposed, showing a good agreement with the experimental findings. (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review A (Atomic, Molecular and Optical Physics)
volume
66
issue
1
publisher
American Physical Society (APS)
external identifiers
  • scopus:0036655475
ISSN
1050-2947
DOI
10.1103/PhysRevA.66.012704
language
English
LU publication?
no
id
18ffe91b-d519-4b00-83b1-f3e55d4bc0b2 (old id 1029508)
date added to LUP
2008-02-12 10:03:14
date last changed
2017-08-06 04:43:58
@article{18ffe91b-d519-4b00-83b1-f3e55d4bc0b2,
  abstract     = {Energy-resolved electron-ion coincidence spectra of the deuteromethane molecule were measured following ionization by narrow-band synchrotron radiation. The ion mass spectra were recorded in coincidence with the outer and inner valence photoelectrons and with the normal Auger electrons from the decay of the carbon 1s core hole. Complementary noncoincidence ion mass spectra were measured below and above the C 1s threshold. The fragmentation patterns of the singly and doubly ionized deuteromethane under different ionization conditions are examined. Carbon core ionization is shown to open new photodissociation pathways not available in the valence ionization photon energy regime. With the aid of ab initio quantum chemistry calculations, a two-step model of the dissociation following core ionization is proposed, showing a good agreement with the experimental findings.},
  articleno    = {012704},
  author       = {Kukk, Edwin and Rius i Riu, Jaume and Stankiewicz, Marek and Hatherly, Paul and Erman, Peter and Rachlew, Elisabeth and Winiarczyk, Piotr and Huttula, Marko and Aksela, Seppo},
  issn         = {1050-2947},
  language     = {eng},
  number       = {1},
  publisher    = {American Physical Society (APS)},
  series       = {Physical Review A (Atomic, Molecular and Optical Physics)},
  title        = {Dissociation of deuteromethane following carbon 1s core ionization},
  url          = {http://dx.doi.org/10.1103/PhysRevA.66.012704},
  volume       = {66},
  year         = {2002},
}