Photoelectron angular distributions from rotationally resolved autoionizing states of N2
- Bryn Mawr College, Bryn Mawr, PA (United States)
- Bryn Mawr College, Bryn Mawr, PA (United States); Bowdoin College , Brunswick, ME (United States)
- ETH Zurich, Zurich (Switzerland)
- Daresbury Lab., Cheshire (United Kingdom)
- Univ. Paris-Sud, Univ. Paris-Saclay, Orsay (France)
- Synchrotron Soleil, Gif-sur-Yvette (France); Chinese Academy of Sciences, Anhui (China)
- Synchrotron Soleil, Gif-sur-Yvette (France)
- Argonne National Lab. (ANL), Argonne, IL (United States)
The single-photon, photoelectron-photoion coincidence spectrum of N2 has been recorded at high (~1.5 cm-1) resolution in the region between the N2+ X 2Σg+, v+ = 0 and 1 ionization thresholds by using a double imaging spectrometer and intense vacuum-ultraviolet light from the Synchrotron SOLEIL. This approach provides the relative photoionization cross section, the photoelectron energy distribution, and the photoelectron angular distribution as a function of photon energy. The region of interest contains autoionizing valence states, vibrationally autoionizing Rydberg states converging to vibrationally excited levels of the N2+ X 2Σg+ ground state, and electronically autoionizing states converging to the N2+ A 2Π and B 2Σu+ states. The wavelength resolution is sufficient to resolve rotational structure in the autoionizing states, but the electron energy resolution is insufficient to resolve rotational structure in the photoion spectrum. Here, a simplified approach based on multichannel quantum defect theory is used to predict the photoelectron angular distribution parameters, β, and the results are in reasonably good agreement with experiment.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1422406
- Alternate ID(s):
- OSTI ID: 1411991
- Journal Information:
- Journal of Chemical Physics, Vol. 147, Issue 22; ISSN 0021-9606
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Photoionization studies of reactive intermediates using synchrotron radiation
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journal | January 2019 |
Double-resonance studies of electronically autoionizing states of molecular nitrogen
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journal | January 2019 |
Double-resonance studies of electronically autoionizing states of molecular nitrogen
|
text | January 2019 |
Double-resonance studies of electronically autoionizing states of molecular nitrogen
|
text | January 2019 |
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