Threshold photoelectron spectroscopy of ...
Document type :
Article dans une revue scientifique
Permalink :
Title :
Threshold photoelectron spectroscopy of the imidogen radical
Author(s) :
Garcia, Gustavo A. [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Gans, Bérenger [Auteur]
Laboratoire de Photophysique Moléculaire [PPM]
Tang, Xiaofeng [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Ward, Michael [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
BATUT, Sebastien [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Nahon, Laurent [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Fittschen, Christa [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Loison, Jean-Christophe [Auteur]
Institut des Sciences Moléculaires [ISM]
Synchrotron SOLEIL [SSOLEIL]
Gans, Bérenger [Auteur]
Laboratoire de Photophysique Moléculaire [PPM]
Tang, Xiaofeng [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Ward, Michael [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
BATUT, Sebastien [Auteur]
Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Nahon, Laurent [Auteur]
Synchrotron SOLEIL [SSOLEIL]
Fittschen, Christa [Auteur]

Physicochimie des Processus de Combustion et de l’Atmosphère - UMR 8522 [PC2A]
Loison, Jean-Christophe [Auteur]
Institut des Sciences Moléculaires [ISM]
Journal title :
Journal of Electron Spectroscopy and related Phenomena
Volume number :
203
Pages :
25-30
Publication date :
2015-08
English keyword(s) :
NH radical
Imidogen
Photoelectron spectroscopy
PEPICO
Imaging
Synchrotron
Coincidences
Flow tube
Imidogen
Photoelectron spectroscopy
PEPICO
Imaging
Synchrotron
Coincidences
Flow tube
HAL domain(s) :
Chimie/Chimie théorique et/ou physique
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
Physique [physics]/Physique [physics]/Chimie-Physique [physics.chem-ph]
English abstract : [en]
We present the threshold photoelectron spectroscopy of the imidogen radical (NH) recorded in the photon energy region up to 1 eV above its first ionization threshold. The radical was produced by reaction of NH3 and F in a ...
Show more >We present the threshold photoelectron spectroscopy of the imidogen radical (NH) recorded in the photon energy region up to 1 eV above its first ionization threshold. The radical was produced by reaction of NH3 and F in a microwave discharge flow-tube and photoionized using vacuum ultraviolet (VUV) synchrotron radiation. A double imaging coincidence spectrometer was used to record mass-selected spectra and avoid contributions from the byproducts present in the reactor and background gas. The energy region includes the ground X+2Π and first electronically excited a+4Σ− states of NH+. Strong adiabatic transitions and weak vibrational progressions up to v+ = 2 are observed for both electronic states. The rotational profile seen in the origin band has been modeled using existing neutral and cationic spectroscopic constants leading to a precise determination of the adiabatic ionization energy at 13.480 ± 0.002 eV.Show less >
Show more >We present the threshold photoelectron spectroscopy of the imidogen radical (NH) recorded in the photon energy region up to 1 eV above its first ionization threshold. The radical was produced by reaction of NH3 and F in a microwave discharge flow-tube and photoionized using vacuum ultraviolet (VUV) synchrotron radiation. A double imaging coincidence spectrometer was used to record mass-selected spectra and avoid contributions from the byproducts present in the reactor and background gas. The energy region includes the ground X+2Π and first electronically excited a+4Σ− states of NH+. Strong adiabatic transitions and weak vibrational progressions up to v+ = 2 are observed for both electronic states. The rotational profile seen in the origin band has been modeled using existing neutral and cationic spectroscopic constants leading to a precise determination of the adiabatic ionization energy at 13.480 ± 0.002 eV.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Research team(s) :
PhysicoChimie de l'Atmosphère (PCA)
Submission date :
2018-11-27T14:25:31Z
2020-10-05T11:33:42Z
2020-10-05T11:33:42Z