Threshold photoelectron spectroscopy of ...
Document type :
Article dans une revue scientifique: Article original
DOI :
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Title :
Threshold photoelectron spectroscopy of the methoxy radical
Author(s) :
Tang, Xiaofeng [Auteur]
Anhui Institute of Optics and Fine Mechanics
Lin, Xiaoxiao [Auteur]
Anhui Institute of Optics and Fine Mechanics
Garcia, Gustavo A. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Loison, Jean-Christophe [Auteur]
Institut des Sciences Moléculaires [ISM]
Fittschen, Christa [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Gu, Xuejun [Auteur]
Anhui Institute of Optics and Fine Mechanics
Zhang, Weijun [Auteur]
Anhui Institute of Optics and Fine Mechanics
Nahon, Laurent [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Anhui Institute of Optics and Fine Mechanics
Lin, Xiaoxiao [Auteur]
Anhui Institute of Optics and Fine Mechanics
Garcia, Gustavo A. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Loison, Jean-Christophe [Auteur]
Institut des Sciences Moléculaires [ISM]
Fittschen, Christa [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Gu, Xuejun [Auteur]
Anhui Institute of Optics and Fine Mechanics
Zhang, Weijun [Auteur]
Anhui Institute of Optics and Fine Mechanics
Nahon, Laurent [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Journal title :
The Journal of Chemical Physics
Abbreviated title :
J. Chem. Phys.
Volume number :
153
Publisher :
AIP Publishing
Publication date :
2020-07-21
HAL domain(s) :
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Chimie/Chimie théorique et/ou physique
Chimie/Chimie théorique et/ou physique
English abstract : [en]
We present here a synchrotron radiation vacuum ultraviolet photoionization study of the simplest alkoxy radical, CH3O, a key reaction intermediate in atmospheric and combustion chemistry. A microwave discharge fast flow ...
Show more >We present here a synchrotron radiation vacuum ultraviolet photoionization study of the simplest alkoxy radical, CH3O, a key reaction intermediate in atmospheric and combustion chemistry. A microwave discharge fast flow tube connected to a molecular beam sampling system is employed as a chemical reactor to initiate reactions and generate radicals. The CH3O+ cation from direct ionization of the CH3O radical is detected successfully in the photoionization mass spectrum close to its ionization threshold. In addition, after identifying and removing the contribution of the 13C-isotopic formaldehyde H213CO with the same isobaric mass m/z = 31, the high-resolution threshold photoelectron spectrum of CH3O is obtained and assigned with the aid of calculated Franck–Condon factors. The adiabatic ionization energy of CH3O is determined at 10.701 eV with an accuracy of 0.005 eV.Show less >
Show more >We present here a synchrotron radiation vacuum ultraviolet photoionization study of the simplest alkoxy radical, CH3O, a key reaction intermediate in atmospheric and combustion chemistry. A microwave discharge fast flow tube connected to a molecular beam sampling system is employed as a chemical reactor to initiate reactions and generate radicals. The CH3O+ cation from direct ionization of the CH3O radical is detected successfully in the photoionization mass spectrum close to its ionization threshold. In addition, after identifying and removing the contribution of the 13C-isotopic formaldehyde H213CO with the same isobaric mass m/z = 31, the high-resolution threshold photoelectron spectrum of CH3O is obtained and assigned with the aid of calculated Franck–Condon factors. The adiabatic ionization energy of CH3O is determined at 10.701 eV with an accuracy of 0.005 eV.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Non spécifiée
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Research team(s) :
PhysicoChimie de l'Atmosphère (PCA)
Submission date :
2020-10-07T14:02:17Z
2020-10-08T07:12:58Z
2020-10-08T07:12:58Z
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