Abstract
Absorption and photo-ionization cross sections of O2 were measured at a number of wavelengths primarily in the region 850–1100 A by a photoelectric method. The Rydberg bands H, H′, M and M′ were found to be strongly pre-ionized, and vibrational structures in the underlying continuum appeared to be present. The photoionization method gave 12.08±0.01 ev as the first ionization potential of O2. This value, combined with data from emission spectra, yielded a value 6.65 ev for the dissociation energy of O2+ and 16.83 ev for the third ionization potential of O2 (O2+A2Πu←O2X 3Σg-). In the case of N2, a number of ``windows'' were observed and it was not possible to establish the presence of an absorption continuum in the region 850–1100 A.
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Dates
Type | When |
---|---|
Created | 20 years, 7 months ago (Jan. 5, 2005, 8:24 p.m.) |
Deposited | 1 year, 6 months ago (Feb. 8, 2024, 12:59 p.m.) |
Indexed | 1 year, 4 months ago (April 4, 2024, 9:19 a.m.) |
Issued | 68 years, 9 months ago (Nov. 1, 1956) |
Published | 68 years, 9 months ago (Nov. 1, 1956) |
Published Print | 68 years, 9 months ago (Nov. 1, 1956) |
@article{Watanabe_1956, title={Photoionization and Total Absorption Cross Section of Gases. II. O2 and N2 in the Region 850–1500 A}, volume={25}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1743151}, DOI={10.1063/1.1743151}, number={5}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Watanabe, K. and Marmo, F. F.}, year={1956}, month=nov, pages={965–971} }