Rotational analysis of the threshold photoelectron spectra of room temperature and jet-cooled CO2

Ralph T. Wiedmann; Michael G. White; Hélène Lefebvre-Brion; Claudina Cossart-Magos

doi:10.1063/1.469890

Rotational analysis of the threshold photoelectron spectra of room temperature and jet-cooled CO₂

Ralph T. Wiedmann
, Michael G. White
, Hélène Lefebvre-Brion
, Claudina Cossart-Magos

Chemistry

Brookhaven National Laboratory
Université Paris-Saclay

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The rotational structure associated with the X̃ ²Π _g (000) ground ionic state of CO₂⁺ has been investigated by threshold photoelectron spectroscopy and semiempirical calculations based on the distribution of Rydberg state levels at n=2000. The calculations are in very good agreement with the rotationally resolved spectra for the X̃ ²Π_g,3/2 and X̃ ²Π_g,1/2 spin-orbit levels for both room temperature and supersonically cooled ground state CO₂. Intensity anomalies are partly explained by decay mechanisms involving rotational and spin-orbit autoionization.

Original language	English
Pages (from-to)	10417-10423
Number of pages	7
Journal	Journal of Chemical Physics
Volume	103
Issue number	24
DOIs	https://doi.org/10.1063/1.469890
State	Published - 1995

Access to Document

10.1063/1.469890

Cite this

@article{1e75a39fd5f0492fb43bc1e3781e7b50,

title = "Rotational analysis of the threshold photoelectron spectra of room temperature and jet-cooled CO2",

abstract = "The rotational structure associated with the {\~X} 2Π g (000) ground ionic state of CO2+ has been investigated by threshold photoelectron spectroscopy and semiempirical calculations based on the distribution of Rydberg state levels at n=2000. The calculations are in very good agreement with the rotationally resolved spectra for the {\~X} 2Πg,3/2 and {\~X} 2Πg,1/2 spin-orbit levels for both room temperature and supersonically cooled ground state CO2. Intensity anomalies are partly explained by decay mechanisms involving rotational and spin-orbit autoionization.",

author = "Wiedmann, \{Ralph T.\} and White, \{Michael G.\} and H{\'e}l{\`e}ne Lefebvre-Brion and Claudina Cossart-Magos",

year = "1995",

doi = "10.1063/1.469890",

language = "English",

volume = "103",

pages = "10417--10423",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

number = "24",

}

TY - JOUR

T1 - Rotational analysis of the threshold photoelectron spectra of room temperature and jet-cooled CO2

AU - Wiedmann, Ralph T.

AU - White, Michael G.

AU - Lefebvre-Brion, Hélène

AU - Cossart-Magos, Claudina

PY - 1995

Y1 - 1995

N2 - The rotational structure associated with the X̃ 2Π g (000) ground ionic state of CO2+ has been investigated by threshold photoelectron spectroscopy and semiempirical calculations based on the distribution of Rydberg state levels at n=2000. The calculations are in very good agreement with the rotationally resolved spectra for the X̃ 2Πg,3/2 and X̃ 2Πg,1/2 spin-orbit levels for both room temperature and supersonically cooled ground state CO2. Intensity anomalies are partly explained by decay mechanisms involving rotational and spin-orbit autoionization.

AB - The rotational structure associated with the X̃ 2Π g (000) ground ionic state of CO2+ has been investigated by threshold photoelectron spectroscopy and semiempirical calculations based on the distribution of Rydberg state levels at n=2000. The calculations are in very good agreement with the rotationally resolved spectra for the X̃ 2Πg,3/2 and X̃ 2Πg,1/2 spin-orbit levels for both room temperature and supersonically cooled ground state CO2. Intensity anomalies are partly explained by decay mechanisms involving rotational and spin-orbit autoionization.

UR - https://www.scopus.com/pages/publications/0029531360

U2 - 10.1063/1.469890

DO - 10.1063/1.469890

M3 - Article

AN - SCOPUS:0029531360

SN - 0021-9606

VL - 103

SP - 10417

EP - 10423

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 24

ER -

Rotational analysis of the threshold photoelectron spectra of room temperature and jet-cooled CO₂

Abstract

Access to Document

Other files and links

Fingerprint

Cite this