On the Photoelectron Spectrum of O2
- 1 January 1970
- journal article
- Published by IOP Publishing in Physica Scripta
- Vol. 1 (1), 25-30
- https://doi.org/10.1088/0031-8949/1/1/004
Abstract
The photoelectron spectrum of molecular oxygen has been studied in the range 12-28 eV with the 584 Å and 304 Å He lines, and the O2 + states have been measured accurately. Due to the high resolution of our apparatus we have been able to observe the A 2 Πu state which has been considered as absent in photoelectron spectroscopy work. Its ionization energy is 17.045 eV. Our result is compared with spectroscopic observations of the second negative band system A 2Πu → X 2Πg. The relative intensity of the A 2Πu state is in good agreement with a recent calculation by Dixon and Hull.Keywords
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