Shape resonance influence on the photoelectron angular distributions from O2 C 3Πg, v=0-3

P. J. Miller; W. A. Chupka; J. Winniczek; M. G. White

doi:10.1063/1.454840

Shape resonance influence on the photoelectron angular distributions from O₂ C ³Π_g, v=0-3

P. J. Miller
, W. A. Chupka
, J. Winniczek
, M. G. White

Chemistry

Yale University
Brookhaven National Laboratory

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

31 Scopus citations

Abstract

Vibrationally resolved, photoelectron angular distributions are reported for the (2 + 1) REMPI of the C ³Π_g (3sσ _g), v′ = 0-3 Rydberg levels of O₂. Ionization transitions leading to different vibrational final states (v⁺) of O₂⁺ exhibit markedly different angular distributions, suggesting different ionization mechanisms. The experimental data are qualitatively reproduced by very recent ab initio calculations which attribute the non-Franck-Condon behavior to the presence of a kσ_u shape resonance imbedded in the ionization continuum. Much of the remaining anomalous behavior is attributed to a Fano-type resonance in the Π_u channel.

Original language	English
Pages (from-to)	4058-4061
Number of pages	4
Journal	Journal of Chemical Physics
Volume	89
Issue number	7
DOIs	https://doi.org/10.1063/1.454840
State	Published - 1988

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title = "Shape resonance influence on the photoelectron angular distributions from O2 C 3Πg, v=0-3",

abstract = "Vibrationally resolved, photoelectron angular distributions are reported for the (2 + 1) REMPI of the C 3Πg (3sσ g), v′ = 0-3 Rydberg levels of O2. Ionization transitions leading to different vibrational final states (v+) of O2+ exhibit markedly different angular distributions, suggesting different ionization mechanisms. The experimental data are qualitatively reproduced by very recent ab initio calculations which attribute the non-Franck-Condon behavior to the presence of a kσu shape resonance imbedded in the ionization continuum. Much of the remaining anomalous behavior is attributed to a Fano-type resonance in the Πu channel.",

author = "Miller, \{P. J.\} and Chupka, \{W. A.\} and J. Winniczek and White, \{M. G.\}",

year = "1988",

doi = "10.1063/1.454840",

language = "English",

volume = "89",

pages = "4058--4061",

journal = "Journal of Chemical Physics",

issn = "0021-9606",

number = "7",

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T1 - Shape resonance influence on the photoelectron angular distributions from O2 C 3Πg, v=0-3

AU - Miller, P. J.

AU - Chupka, W. A.

AU - Winniczek, J.

AU - White, M. G.

PY - 1988

Y1 - 1988

N2 - Vibrationally resolved, photoelectron angular distributions are reported for the (2 + 1) REMPI of the C 3Πg (3sσ g), v′ = 0-3 Rydberg levels of O2. Ionization transitions leading to different vibrational final states (v+) of O2+ exhibit markedly different angular distributions, suggesting different ionization mechanisms. The experimental data are qualitatively reproduced by very recent ab initio calculations which attribute the non-Franck-Condon behavior to the presence of a kσu shape resonance imbedded in the ionization continuum. Much of the remaining anomalous behavior is attributed to a Fano-type resonance in the Πu channel.

AB - Vibrationally resolved, photoelectron angular distributions are reported for the (2 + 1) REMPI of the C 3Πg (3sσ g), v′ = 0-3 Rydberg levels of O2. Ionization transitions leading to different vibrational final states (v+) of O2+ exhibit markedly different angular distributions, suggesting different ionization mechanisms. The experimental data are qualitatively reproduced by very recent ab initio calculations which attribute the non-Franck-Condon behavior to the presence of a kσu shape resonance imbedded in the ionization continuum. Much of the remaining anomalous behavior is attributed to a Fano-type resonance in the Πu channel.

UR - https://www.scopus.com/pages/publications/0041553938

U2 - 10.1063/1.454840

DO - 10.1063/1.454840

M3 - Article

AN - SCOPUS:0041553938

SN - 0021-9606

VL - 89

SP - 4058

EP - 4061

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

IS - 7

ER -

Shape resonance influence on the photoelectron angular distributions from O₂ C ³Π_g, v=0-3

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