Determination of ionization potentials from photoelectron spectra
- 1 August 1973
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 26 (2), 361-367
- https://doi.org/10.1080/00268977300101711
Abstract
The theory of the determination of vertical (I v ) and adiabatic (I a ) ionization potentials from molecular photoelectron spectra is examined. It is shown that it is the centroid of the vibrational structure rather than the position of maximum intensity which gives the correct value for I v . The results are applied to the photoelectron spectra of H2 and H2O. The value of I v so determined for the H2 → H2 + transition is in satisfactory agreement with that expected from the theoretical energy levels of H2 +.Keywords
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