Abstract
The dissociation energy of the ground state of NaH was determined by analyzing the observed near dissociation rovibrational levels. These levels were reached by stimulated emission pumping and fluorescence depletion spectroscopy. A total of 114 rovibrational levels in the ranges 9≤ v″ ≤21 and 1≤ J″ ≤14 were assigned to the X σ1 + state of NaH. The highest vibrational level observed was only about 40 cm-1 from the dissociation limit in the ground state. One quasibound state, above the dissociation limit and confined by the centrifugal barrier, was observed. Determining the vibrational quantum number at dissociation vD from the highest four vibrational levels yielded the dissociation energy De =15 815±5 cm-1. Based on new observations and available data, a set of Dunham coefficients and the rotationless Rydberg-Klein-Rees curve were constructed. The effective potential curve and the quasibound states were discussed.
| Original language | English |
|---|---|
| Article number | 044301 |
| Journal | Journal of Chemical Physics |
| Volume | 133 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2010 Jul 28 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry
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Dissociation energy of the ground state of NaH. / Huang, Hsien Yu; Lu, Tsai Lien; Whang, Thou-Jen; Chang, Yung Yung; Tsai, Chin-Chun.
In: Journal of Chemical Physics, Vol. 133, No. 4, 044301, 28.07.2010.Research output: Contribution to journal › Article
TY - JOUR
T1 - Dissociation energy of the ground state of NaH
AU - Huang, Hsien Yu
AU - Lu, Tsai Lien
AU - Whang, Thou-Jen
AU - Chang, Yung Yung
AU - Tsai, Chin-Chun
PY - 2010/7/28
Y1 - 2010/7/28
N2 - The dissociation energy of the ground state of NaH was determined by analyzing the observed near dissociation rovibrational levels. These levels were reached by stimulated emission pumping and fluorescence depletion spectroscopy. A total of 114 rovibrational levels in the ranges 9≤ v″ ≤21 and 1≤ J″ ≤14 were assigned to the X σ1 + state of NaH. The highest vibrational level observed was only about 40 cm-1 from the dissociation limit in the ground state. One quasibound state, above the dissociation limit and confined by the centrifugal barrier, was observed. Determining the vibrational quantum number at dissociation vD from the highest four vibrational levels yielded the dissociation energy De =15 815±5 cm-1. Based on new observations and available data, a set of Dunham coefficients and the rotationless Rydberg-Klein-Rees curve were constructed. The effective potential curve and the quasibound states were discussed.
AB - The dissociation energy of the ground state of NaH was determined by analyzing the observed near dissociation rovibrational levels. These levels were reached by stimulated emission pumping and fluorescence depletion spectroscopy. A total of 114 rovibrational levels in the ranges 9≤ v″ ≤21 and 1≤ J″ ≤14 were assigned to the X σ1 + state of NaH. The highest vibrational level observed was only about 40 cm-1 from the dissociation limit in the ground state. One quasibound state, above the dissociation limit and confined by the centrifugal barrier, was observed. Determining the vibrational quantum number at dissociation vD from the highest four vibrational levels yielded the dissociation energy De =15 815±5 cm-1. Based on new observations and available data, a set of Dunham coefficients and the rotationless Rydberg-Klein-Rees curve were constructed. The effective potential curve and the quasibound states were discussed.
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U2 - 10.1063/1.3458914
DO - 10.1063/1.3458914
M3 - Article
VL - 133
JO - Journal of Chemical Physics
JF - Journal of Chemical Physics
SN - 0021-9606
IS - 4
M1 - 044301
ER -