Spectroscopic determination of the ground-state dissociation energy and isotopic shift of NaD

Chia Ching Chu; Wei Fung He; Rong Sin Lin; Yin Ji Li; Thou Jen Whang; Chin Chun Tsai

doi:10.1063/1.4991036

Spectroscopic determination of the ground-state dissociation energy and isotopic shift of NaD

Chia Ching Chu, Wei Fung He, Rong Sin Lin, Yin Ji Li, Thou Jen Whang, Chin Chun Tsai

研究成果: Article › 同行評審

5 引文斯高帕斯（Scopus）

摘要

Stimulated emission pumping with fluorescence depletion spectroscopy is used to determine the NaD X ¹Σ⁺ ground-state dissociation energy and its isotopic shift. A total of 230 rovibrational levels in the range 9 ≤ v″ ≤ 29 and 1 ≤ J″ ≤ 11 are observed, where v″ = 29 is about 50 cm^-1 below the dissociation limit. Analysis of the highest five vibrational levels yields the dissociation energy D_e = 15 822 ± 5 cm^-1 with a vibrational quantum number at dissociation v_D = 31.2 ± 0.1. The energy difference in the well depth of this isotopologue with respect to that of NaH is δD_e = D_e(NaH) - D_e(NaD) = -7 cm^-1. A new set of Dunham coefficients is derived to fit all the observed energy levels to within the experimental uncertainty.

原文	English
文章編號	024301
期刊	Journal of Chemical Physics
卷	147
發行號	2
DOIs	https://doi.org/10.1063/1.4991036
出版狀態	Published - 2017 7月 14

All Science Journal Classification (ASJC) codes

一般物理與天文學
物理與理論化學

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10.1063/1.4991036

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title = "Spectroscopic determination of the ground-state dissociation energy and isotopic shift of NaD",

abstract = "Stimulated emission pumping with fluorescence depletion spectroscopy is used to determine the NaD X 1Σ+ ground-state dissociation energy and its isotopic shift. A total of 230 rovibrational levels in the range 9 ≤ v″ ≤ 29 and 1 ≤ J″ ≤ 11 are observed, where v″ = 29 is about 50 cm-1 below the dissociation limit. Analysis of the highest five vibrational levels yields the dissociation energy De = 15 822 ± 5 cm-1 with a vibrational quantum number at dissociation vD = 31.2 ± 0.1. The energy difference in the well depth of this isotopologue with respect to that of NaH is δDe = De(NaH) - De(NaD) = -7 cm-1. A new set of Dunham coefficients is derived to fit all the observed energy levels to within the experimental uncertainty.",

author = "Chu, {Chia Ching} and He, {Wei Fung} and Lin, {Rong Sin} and Li, {Yin Ji} and Whang, {Thou Jen} and Tsai, {Chin Chun}",

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T1 - Spectroscopic determination of the ground-state dissociation energy and isotopic shift of NaD

AU - Chu, Chia Ching

AU - He, Wei Fung

AU - Lin, Rong Sin

AU - Li, Yin Ji

AU - Whang, Thou Jen

AU - Tsai, Chin Chun

PY - 2017/7/14

Y1 - 2017/7/14

N2 - Stimulated emission pumping with fluorescence depletion spectroscopy is used to determine the NaD X 1Σ+ ground-state dissociation energy and its isotopic shift. A total of 230 rovibrational levels in the range 9 ≤ v″ ≤ 29 and 1 ≤ J″ ≤ 11 are observed, where v″ = 29 is about 50 cm-1 below the dissociation limit. Analysis of the highest five vibrational levels yields the dissociation energy De = 15 822 ± 5 cm-1 with a vibrational quantum number at dissociation vD = 31.2 ± 0.1. The energy difference in the well depth of this isotopologue with respect to that of NaH is δDe = De(NaH) - De(NaD) = -7 cm-1. A new set of Dunham coefficients is derived to fit all the observed energy levels to within the experimental uncertainty.

AB - Stimulated emission pumping with fluorescence depletion spectroscopy is used to determine the NaD X 1Σ+ ground-state dissociation energy and its isotopic shift. A total of 230 rovibrational levels in the range 9 ≤ v″ ≤ 29 and 1 ≤ J″ ≤ 11 are observed, where v″ = 29 is about 50 cm-1 below the dissociation limit. Analysis of the highest five vibrational levels yields the dissociation energy De = 15 822 ± 5 cm-1 with a vibrational quantum number at dissociation vD = 31.2 ± 0.1. The energy difference in the well depth of this isotopologue with respect to that of NaH is δDe = De(NaH) - De(NaD) = -7 cm-1. A new set of Dunham coefficients is derived to fit all the observed energy levels to within the experimental uncertainty.

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Spectroscopic determination of the ground-state dissociation energy and isotopic shift of NaD

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