Dissociation energy of the ground state of NaH

Hsien Yu Huang; Tsai Lien Lu; Thou Jen Whang; Yung Yung Chang; Chin Chun Tsai

doi:10.1063/1.3458914

Dissociation energy of the ground state of NaH

Hsien Yu Huang, Tsai Lien Lu, Thou Jen Whang, Yung Yung Chang, Chin Chun Tsai

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17 Citations (Scopus)

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 v_D from the highest four vibrational levels yielded the dissociation energy D_e =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	https://doi.org/10.1063/1.3458914
Publication status	Published - 2010 Jul 28

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1063/1.3458914

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@article{9484b8dc159b4359970c6b09f5793426,

title = "Dissociation energy of the ground state of NaH",

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.",

author = "Huang, {Hsien Yu} and Lu, {Tsai Lien} and Whang, {Thou Jen} and Chang, {Yung Yung} and Tsai, {Chin Chun}",

note = "Funding Information: We gratefully acknowledge the support of this work by the National Science Council, Taiwan (NSC 88-2113-M006-003). Ted Knoy is appreciated for his editorial assistance.",

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doi = "10.1063/1.3458914",

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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

N1 - Funding Information: We gratefully acknowledge the support of this work by the National Science Council, Taiwan (NSC 88-2113-M006-003). Ted Knoy is appreciated for his editorial assistance.

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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JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

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ER -

Dissociation energy of the ground state of NaH

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