Collision-energy-resolved Penning ionization electron spectroscopy of OCS with He*(23S) metastable atoms

Naoki Kishimoto; Takuya Horio; Satoshi Maeda; Koichi Ohno

doi:10.1016/j.cplett.2003.08.046

Collision-energy-resolved Penning ionization electron spectroscopy of OCS with He*(2³S) metastable atoms

Naoki Kishimoto, Takuya Horio, Satoshi Maeda, Koichi Ohno

Research output: Contribution to journal › Article

14 Citations (Scopus)

Abstract

Collision-energy dependence of partial Penning ionization cross-sections (CEDPICS) of OCS was obtained from collision-energy/electron-energy-resolved two-dimensional spectrum with a highly sensitive electron energy analyzer. The negative CEDPICS for X²Π and C²Σ⁺ states indicates attractive interaction around S and O atoms with He ^*(2³S), where the corresponding 3π(S _3p-O_2p) and 8σ(σ_CO) orbitals extend, respectively. Utilizing classical trajectory calculations for CEDPICS and optimization of model potential energy surface, a large ring-like attractive well with a depth of ca. 120 meV was found for perpendicular directions around C S axis and smaller interaction was found in the collinear direction of the C O axis with well depth of ca. 70 meV around the oxygen atom in the lone pair region by sp² hybridization.

Original language	English
Pages (from-to)	332-339
Number of pages	8
Journal	Chemical Physics Letters
Volume	379
Issue number	3-4
DOIs	https://doi.org/10.1016/j.cplett.2003.08.046
Publication status	Published - Sep 26 2003
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)
Physical and Theoretical Chemistry

Access to Document

10.1016/j.cplett.2003.08.046

Fingerprint Dive into the research topics of 'Collision-energy-resolved Penning ionization electron spectroscopy of OCS with He*(2<sup>3</sup>S) metastable atoms'. Together they form a unique fingerprint.

Cite this

Kishimoto, N., Horio, T., Maeda, S., & Ohno, K. (2003). Collision-energy-resolved Penning ionization electron spectroscopy of OCS with He*(2³S) metastable atoms. Chemical Physics Letters, 379(3-4), 332-339. https://doi.org/10.1016/j.cplett.2003.08.046

@article{b8952fea04c34f3091aa122f2337e544,

title = "Collision-energy-resolved Penning ionization electron spectroscopy of OCS with He*(23S) metastable atoms",

abstract = "Collision-energy dependence of partial Penning ionization cross-sections (CEDPICS) of OCS was obtained from collision-energy/electron-energy-resolved two-dimensional spectrum with a highly sensitive electron energy analyzer. The negative CEDPICS for X2Π and C2Σ+ states indicates attractive interaction around S and O atoms with He *(23S), where the corresponding 3π(S 3p-O2p) and 8σ(σCO) orbitals extend, respectively. Utilizing classical trajectory calculations for CEDPICS and optimization of model potential energy surface, a large ring-like attractive well with a depth of ca. 120 meV was found for perpendicular directions around C S axis and smaller interaction was found in the collinear direction of the C O axis with well depth of ca. 70 meV around the oxygen atom in the lone pair region by sp2 hybridization.",

author = "Naoki Kishimoto and Takuya Horio and Satoshi Maeda and Koichi Ohno",

year = "2003",

month = sep,

day = "26",

doi = "10.1016/j.cplett.2003.08.046",

language = "English",

volume = "379",

pages = "332--339",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

number = "3-4",

}

TY - JOUR

T1 - Collision-energy-resolved Penning ionization electron spectroscopy of OCS with He*(23S) metastable atoms

AU - Kishimoto, Naoki

AU - Horio, Takuya

AU - Maeda, Satoshi

AU - Ohno, Koichi

PY - 2003/9/26

Y1 - 2003/9/26

N2 - Collision-energy dependence of partial Penning ionization cross-sections (CEDPICS) of OCS was obtained from collision-energy/electron-energy-resolved two-dimensional spectrum with a highly sensitive electron energy analyzer. The negative CEDPICS for X2Π and C2Σ+ states indicates attractive interaction around S and O atoms with He *(23S), where the corresponding 3π(S 3p-O2p) and 8σ(σCO) orbitals extend, respectively. Utilizing classical trajectory calculations for CEDPICS and optimization of model potential energy surface, a large ring-like attractive well with a depth of ca. 120 meV was found for perpendicular directions around C S axis and smaller interaction was found in the collinear direction of the C O axis with well depth of ca. 70 meV around the oxygen atom in the lone pair region by sp2 hybridization.

AB - Collision-energy dependence of partial Penning ionization cross-sections (CEDPICS) of OCS was obtained from collision-energy/electron-energy-resolved two-dimensional spectrum with a highly sensitive electron energy analyzer. The negative CEDPICS for X2Π and C2Σ+ states indicates attractive interaction around S and O atoms with He *(23S), where the corresponding 3π(S 3p-O2p) and 8σ(σCO) orbitals extend, respectively. Utilizing classical trajectory calculations for CEDPICS and optimization of model potential energy surface, a large ring-like attractive well with a depth of ca. 120 meV was found for perpendicular directions around C S axis and smaller interaction was found in the collinear direction of the C O axis with well depth of ca. 70 meV around the oxygen atom in the lone pair region by sp2 hybridization.

UR - http://www.scopus.com/inward/record.url?scp=0141829753&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0141829753&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2003.08.046

DO - 10.1016/j.cplett.2003.08.046

M3 - Article

AN - SCOPUS:0141829753

VL - 379

SP - 332

EP - 339

JO - Chemical Physics Letters

JF - Chemical Physics Letters

SN - 0009-2614

IS - 3-4

ER -