Dissociations of water ions after valence and inner-valence ionization.
J Chem Phys
; 149(20): 204307, 2018 Nov 28.
Article
em En
| MEDLINE
| ID: mdl-30501256
ABSTRACT
Energy selected and mass-resolved electron-ion coincidence spectra of heavy water have been recorded for ionization energies from 18 to 35 eV. Dissociation from the B2B2 state produces both O+ and D2 + at energies near their thermodynamic thresholds in addition to the known products D+ and OD+. The relative yields of O+, OD+, and D+ in the B2B2 state breakdown diagram are modulated by the vibrational structure of the B-state population, implying incomplete energy equilibration before fragmentation. Decay from the C-state produces OD+ in addition to the known O+ and D+. The fragment kinetic energies suggest that O+ and D+ from the C state are the products of full atomization of the molecule.
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MEDLINE
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En
Ano de publicação:
2018
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Article