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  Angle‐resolved photoelectron spectroscopy of the core levels of N2O

Schmidbauer, M., Kilcoyne, A. L. D., Randall, K. J., Feldhaus, J., Bradshaw, A. M., Braunstein, M., et al. (1991). Angle‐resolved photoelectron spectroscopy of the core levels of N2O. The Journal of Chemical Physics, 94(8), 5299-5305. doi:/10.1063/1.460514.

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1.460514.pdf (Publisher version), 2MB
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1991
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 Creators:
Schmidbauer, Martin1, Author           
Kilcoyne, A. L. D.1, Author           
Randall, K. J.1, Author           
Feldhaus, J.1, Author           
Bradshaw, Alexander M.1, Author           
Braunstein, M.2, 3, Author
McKoy, V.2, Author
Affiliations:
1Fritz Haber Institute, Max Planck Society, ou_24021              
2Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, ou_persistent22              
3T-12 Division, Mail Stop B-268, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, ou_persistent22              

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 Abstract: We have measured photoionization cross sections and photoelectron asymmetry parameters for each of the core levels of N2O. We have also carried out frozen‐ and relaxed‐core Hartree–Fock studies of these cross sections so as to better understand the underlying shape resonant structure and the role of electronic relaxation in these processes. A broad shape resonance is observed in each of the core‐hole cross sections at 10‐20 eV kinetic energy and there is some evidence of a second shape resonance near the thresholds, an energy region which is not accessible experimentally. The cross sections also exhibit site‐specific behavior with maxima at widely separated photoelectron kinetic energies. These differences probably arise from the fact that photoelectron matrix elements for different core orbitals probe different regions of the shape resonant orbital which extends over the entire molecule. Although the higher energy shape resonances appear quite similar, Hartree–Fock studies show that the central nitrogen resonance is more sensitive to effects of electronic relaxation than the terminal nitrogen or oxygen resonances. Large differences are also seen between the photoelectron asymmetry parameters for the central and terminal atoms.

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Language(s): eng - English
 Dates: 1990-12-111991-01-041991-04-15
 Publication Status: Issued
 Pages: 7
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: /10.1063/1.460514
 Degree: -

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Title: The Journal of Chemical Physics
  Abbreviation : J. Chem. Phys.
Source Genre: Journal
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Publ. Info: Woodbury, N.Y. : American Institute of Physics
Pages: 7 Volume / Issue: 94 (8) Sequence Number: - Start / End Page: 5299 - 5305 Identifier: ISSN: 0021-9606
CoNE: https://pure.mpg.de/cone/journals/resource/954922836226