Spectrum and Structure of the He2 Molecule. I. Characterization of the States Associated with the UAO's 3pσ and 2s
- 15 January 1965
- journal article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 42 (2) , 561-568
- https://doi.org/10.1063/1.1695973
Abstract
The He2 band systems 3pσ, 1,3Σg+→2s, 1,3Σu+ are described in detail. The rotational and vibrational constants of the 2s, a 3Σu+ and A 1Σu+ and 3pσ, c 3Σg+ states are improved and the data for the A and c states extended from v=1 to v=3 and 4, respectively. The 3pσ C 1Σg+ state (identified for the first time) has been characterized through v=5. The apparent dissociation energy of the c 3Σg+ state is found to be ∼0.7 eV too high to be consistent with the theoretical dissociation energy of He2+. If the D0 value for He2+ is correct, large maxima must be present in the potential curves of a number of electronic states of He2. Also discussed is the observed and expected behavior of states associated with npσ UAO's.Keywords
This publication has 7 references indexed in Scilit:
- The Rydberg States of Molecules.1a Parts I-V1bJournal of the American Chemical Society, 1964
- Helium Continuum Light Source for Photoelectric Scanning in the 600–1100 Å RegionApplied Optics, 1963
- New Lower Limit for the Binding Energy of the Helium Molecule IonJournal of the American Chemical Society, 1962
- New Xenon-Light Source for the Vacuum Ultraviolet*Journal of the Optical Society of America, 1955
- The Band Spectra of the Hydrides of Lithium Part I:DPhysical Review B, 1935
- Infra-red spectra of heliumBureau of Standards Journal of Research, 1932
- Neue Gesetzmäßigkeiten im Bandenspektrum des Heliums. IIIThe European Physical Journal A, 1929