Abstract
Penning ionization of HCl upon collision with metastable He*(23S) atoms was studied by two-dimensional (collision-energy/electron energy resolved) Penning ionization electron spectroscopy and by classical trajectory calculations. Collision energy resolved studies enable us to obtain important information about stereo dynamical aspects on this reaction; sideways approaches of the He* atoms on H-Cl molecular axis play a dominant role in the ionization event for producing HCl+(X 2Πi, v′ = 0,1), and glancing collision is one of the dominant trajectories of the He* atoms to produce HCl+(A, 2Σ+). It was also found that the formation of vibrationally excited HCl+(X 2Πi, v′ > 1) through the unidentified HCl** Rydberg state was influenced by a strong attractive interaction, whereas the formation of the HCl** Rydberg state, dissociating to H(1s) and autoionizing Cl**(1D2 nl) atoms, was found to be affected by a repulsive interaction around the Cl end of the HCl molecule.
| Original language | English |
|---|---|
| Pages (from-to) | 3759-3765 |
| Number of pages | 7 |
| Journal | Journal of Physical Chemistry A |
| Volume | 106 |
| Issue number | 15 |
| DOIs | |
| Publication status | Published - 2002 Apr 18 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
Cite this
Two-dimensional penning ionization electron spectroscopy of HCl with He*(23S) atom. / Imura, Kohei; Kishimoto, Naoki; Ohno, Koichi.
In: Journal of Physical Chemistry A, Vol. 106, No. 15, 18.04.2002, p. 3759-3765.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Two-dimensional penning ionization electron spectroscopy of HCl with He*(23S) atom
AU - Imura, Kohei
AU - Kishimoto, Naoki
AU - Ohno, Koichi
PY - 2002/4/18
Y1 - 2002/4/18
N2 - Penning ionization of HCl upon collision with metastable He*(23S) atoms was studied by two-dimensional (collision-energy/electron energy resolved) Penning ionization electron spectroscopy and by classical trajectory calculations. Collision energy resolved studies enable us to obtain important information about stereo dynamical aspects on this reaction; sideways approaches of the He* atoms on H-Cl molecular axis play a dominant role in the ionization event for producing HCl+(X 2Πi, v′ = 0,1), and glancing collision is one of the dominant trajectories of the He* atoms to produce HCl+(A, 2Σ+). It was also found that the formation of vibrationally excited HCl+(X 2Πi, v′ > 1) through the unidentified HCl** Rydberg state was influenced by a strong attractive interaction, whereas the formation of the HCl** Rydberg state, dissociating to H(1s) and autoionizing Cl**(1D2 nl) atoms, was found to be affected by a repulsive interaction around the Cl end of the HCl molecule.
AB - Penning ionization of HCl upon collision with metastable He*(23S) atoms was studied by two-dimensional (collision-energy/electron energy resolved) Penning ionization electron spectroscopy and by classical trajectory calculations. Collision energy resolved studies enable us to obtain important information about stereo dynamical aspects on this reaction; sideways approaches of the He* atoms on H-Cl molecular axis play a dominant role in the ionization event for producing HCl+(X 2Πi, v′ = 0,1), and glancing collision is one of the dominant trajectories of the He* atoms to produce HCl+(A, 2Σ+). It was also found that the formation of vibrationally excited HCl+(X 2Πi, v′ > 1) through the unidentified HCl** Rydberg state was influenced by a strong attractive interaction, whereas the formation of the HCl** Rydberg state, dissociating to H(1s) and autoionizing Cl**(1D2 nl) atoms, was found to be affected by a repulsive interaction around the Cl end of the HCl molecule.
UR - http://www.scopus.com/inward/record.url?scp=0037129527&partnerID=8YFLogxK
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U2 - 10.1021/jp0143793
DO - 10.1021/jp0143793
M3 - Article
AN - SCOPUS:0037129527
VL - 106
SP - 3759
EP - 3765
JO - Journal of Physical Chemistry A
JF - Journal of Physical Chemistry A
SN - 1089-5639
IS - 15
ER -