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Communication: Test of quantum chemistry in vibrationally hot hydrogen molecules.
- Source :
-
Journal of Chemical Physics . 2015, Vol. 143 Issue 8, p1-4. 4p. 1 Diagram, 2 Charts, 3 Graphs. - Publication Year :
- 2015
-
Abstract
- Precision measurements are performed on highly excited vibrational quantum states of molecular hydrogen. The v = 12, J = 0 - 3 rovibrational levels of H2 (X1S+ g), lying only 2000 cm-1 below the first dissociation limit, were populated by photodissociation of H2S and their level energies were accurately determined by two-photon Doppler-free spectroscopy. A comparison between the experimental results on v = 12 level energies with the best ab initio calculations shows a good agreement, where the present experimental accuracy of 3.5 × 10-3 cm-1 is more precise than theory, hence providing a gateway to further test theoretical advances in this benchmark quantum system. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00219606
- Volume :
- 143
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- Journal of Chemical Physics
- Publication Type :
- Academic Journal
- Accession number :
- 109268345
- Full Text :
- https://doi.org/10.1063/1.4929568