Comment on: Observation of Strong Rydberg-Valence Mixing in the E (3) Sigma (u) (-) State of O2 by 3+1 Multiphoton Ionization Photoelectron Spectroscopy
Abstract
A recent paper on the 3 + 1 MPI photoelectron spectrum of O2 via it s E 3 Sigma (u)(-) state shows that the so-called 'longest' band has a strongly mixed Rydberg-valence character. To prevent confusion it should be noted that this E state was relabeled B' 3 Sigma (u)(-) because of this mixture and its formation from the upper state of the well known Schumann-Runge bands; namely, B 3 Sigma (u)(-). Based on theoretical calculations, the B' 3 Sigma (u)(-) state was predicted to have as its first three vibrational levels, the longest, 'second,' and 'third' bands at 1244, 1206, and 1172 A. Also show that their MPI data agree with the longest being a (0,0) band which they report is in contrast to the original assignment who assigned it as (1,0). It is necessary to point out that the original assignment was changed on the basis of a reanalysis of the spectroscopic data. The longest, second, and third bands should indeed be the (0,0), (1,0), and (2,0) bands of the B' 3 Sigma (u)(-) -X 3 Sigma (g)(-) transition. More recent work on the O2 absorption spectrum at high temperature supports these vibrational assignments. Reprints.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 15, 1988
- Accession Number
- ADA202025
Entities
People
- D. H. Katayama
Organizations
- Air Force Research Laboratory