Vibration-rotation spectroscopy of the HD+ion near the dissociation limit
- 1 November 1985
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 56 (4) , 935-975
- https://doi.org/10.1080/00268978500102821
Abstract
A sequential two-photon photodissociation experiment employing infrared lasers which interact with a fast ion beam has been used to detect vibration-rotation transitions between levels of the HD+ ion near the dissociation limit. Measurements of five P-branch transitions in the 17-15 band and six rotational components of the 20-17 band are reported. The proton nuclear hyperfine splittings for transitions in the 20-17 band are much larger than for the previously measured 17-14 and 18-16 bands. The resolved structure and lineshapes are shown to provide conclusive experimental evidence of an asymmetric electron (and therefore charge) distribution, in the sense H+ + D, as the dissociation limit is approached. The effects of this dramatic breakdown of the Born-Oppenheimer approximation are explored in theoretical calculations of the hyperfine splittings.Keywords
This publication has 32 references indexed in Scilit:
- The vibration–rotational energies of the hydrogen molecular ion HD+The Journal of Chemical Physics, 1980
- Hyperfine Structure in the Infrared Spectrum of HDPhysical Review Letters, 1977
- The 1973 table of the fundamental physical constantsAtomic Data and Nuclear Data Tables, 1976
- Photodissociation ofand: TheoryPhysical Review B, 1968
- Rotational Hfs Spectra ofMolecular IonsPhysical Review Letters, 1968
- Alignment of theMolecular Ion by Selective Photodissociation. II. Experiments on the Radio-Frequency SpectrumPhysical Review B, 1968
- Nonadiabatic Theory for Diatomic Molecules and Its Application to the Hydrogen MoleculeReviews of Modern Physics, 1963
- The hyperfine structure of the hydrogen molecular ionProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1960
- Zur Theorie des WasserstoffmolekülionsThe European Physical Journal A, 1934
- Über die Elektronenterme des WasserstoffmolekülsThe European Physical Journal A, 1931