Measurements of Hyperfine Structure in NHJD

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Abstract

Hyperfine structure on the 414-404 rotation-inversion transition in NH2D was measured with a twocavity maser spectrometer with 350-Hz linewidth. A reasonably good fit to the observed transitions is obtained by including the nitrogen quadrupole interaction, the nitrogen spin-rotation interaction, the deuteron quadrupole interaction, the deuteron spin-rotation interaction, and the nitrogen-deuteron spinspin interaction in the Hamiltonian. The values of the coupling constants obtained are: for the 4u state (eqJQ)N=-1895.65±0.7 kHz, (eqJQ) D=-75.78±0.7 kHz, and for the 4 state (eqJQ)N=- 1811.55± 0.7 kHz, (eqjQ)i3= -80.13±0.7 kHz, and for the values of the other parameters averaged over these states CN = 5.027±0.18 kHz, CD=- 2.33±0.18 kHz, and DND=0. 307±0.70 kHz. The rotation-inversion frequency for this transition is 25 023 794.706±0.07 kHz.

Original languageEnglish (US)
Pages (from-to)5464-5472
Number of pages9
JournalThe Journal of Chemical Physics
StatePublished - 1968
Externally publishedYes

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hyperfine structure
Deuterium
Nitrogen
deuterons
nitrogen
interactions
Masers
Hamiltonians
quadrupoles
inversions
Linewidth
Spectrometers
masers
spectrometers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Measurements of Hyperfine Structure in NHJD. / Kukolich, Stephen G.

In: The Journal of Chemical Physics, 1968, p. 5464-5472.

Research output: Contribution to journalArticle

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abstract = "Hyperfine structure on the 414-404 rotation-inversion transition in NH2D was measured with a twocavity maser spectrometer with 350-Hz linewidth. A reasonably good fit to the observed transitions is obtained by including the nitrogen quadrupole interaction, the nitrogen spin-rotation interaction, the deuteron quadrupole interaction, the deuteron spin-rotation interaction, and the nitrogen-deuteron spinspin interaction in the Hamiltonian. The values of the coupling constants obtained are: for the 4u state (eqJQ)N=-1895.65±0.7 kHz, (eqJQ) D=-75.78±0.7 kHz, and for the 4 state (eqJQ)N=- 1811.55± 0.7 kHz, (eqjQ)i3= -80.13±0.7 kHz, and for the values of the other parameters averaged over these states CN = 5.027±0.18 kHz, CD=- 2.33±0.18 kHz, and DND=0. 307±0.70 kHz. The rotation-inversion frequency for this transition is 25 023 794.706±0.07 kHz.",
author = "Kukolich, {Stephen G}",
year = "1968",
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AU - Kukolich, Stephen G

PY - 1968

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N2 - Hyperfine structure on the 414-404 rotation-inversion transition in NH2D was measured with a twocavity maser spectrometer with 350-Hz linewidth. A reasonably good fit to the observed transitions is obtained by including the nitrogen quadrupole interaction, the nitrogen spin-rotation interaction, the deuteron quadrupole interaction, the deuteron spin-rotation interaction, and the nitrogen-deuteron spinspin interaction in the Hamiltonian. The values of the coupling constants obtained are: for the 4u state (eqJQ)N=-1895.65±0.7 kHz, (eqJQ) D=-75.78±0.7 kHz, and for the 4 state (eqJQ)N=- 1811.55± 0.7 kHz, (eqjQ)i3= -80.13±0.7 kHz, and for the values of the other parameters averaged over these states CN = 5.027±0.18 kHz, CD=- 2.33±0.18 kHz, and DND=0. 307±0.70 kHz. The rotation-inversion frequency for this transition is 25 023 794.706±0.07 kHz.

AB - Hyperfine structure on the 414-404 rotation-inversion transition in NH2D was measured with a twocavity maser spectrometer with 350-Hz linewidth. A reasonably good fit to the observed transitions is obtained by including the nitrogen quadrupole interaction, the nitrogen spin-rotation interaction, the deuteron quadrupole interaction, the deuteron spin-rotation interaction, and the nitrogen-deuteron spinspin interaction in the Hamiltonian. The values of the coupling constants obtained are: for the 4u state (eqJQ)N=-1895.65±0.7 kHz, (eqJQ) D=-75.78±0.7 kHz, and for the 4 state (eqJQ)N=- 1811.55± 0.7 kHz, (eqjQ)i3= -80.13±0.7 kHz, and for the values of the other parameters averaged over these states CN = 5.027±0.18 kHz, CD=- 2.33±0.18 kHz, and DND=0. 307±0.70 kHz. The rotation-inversion frequency for this transition is 25 023 794.706±0.07 kHz.

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