High-resolution spectroscopy of the v2 = 2 a ← v2 = 1 s band of 14NH3

Hiroyuki Sasada; R. H. Schwendeman; Gottfried Magerl; R. L. Poynter; J. S. Margolis

doi:10.1016/0022-2852(86)90157-8

High-resolution spectroscopy of the v₂ = 2 a ← v₂ = 1 s band of ¹⁴NH₃

Hiroyuki Sasada, R. H. Schwendeman, Gottfried Magerl, R. L. Poynter, J. S. Margolis

Department of Physics

Research output: Contribution to journal › Article › peer-review

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Abstract

Twenty-one transitions of the v₂ = 2 a ← v₂ = 1 s hot band of ¹⁴NH₃ have been observed by an infrared microwave sideband laser spectrometer with an absolute accuracy of 0.00002 cm^-1. One hundred and seventeen transitions of the band have been obtained by a Fourier transform infrared spectrometer at a resolution of 0.005 cm^-1. A weighted least-squares analysis of these data has been carried out to yield 17 molecular parameters for the v₂ = 2 a state. These parameters reproduce the experimental frequencies with a root mean square deviation of 0.000123 cm^-1. To calculate the frequencies to this accuracy it was necessary to take into account the Δ(K - l) = ±3 interaction between the v₂ = 2 a and v₄ = 1 a states.

Original language	English
Pages (from-to)	317-330
Number of pages	14
Journal	Journal of Molecular Spectroscopy
Volume	117
Issue number	2
DOIs	https://doi.org/10.1016/0022-2852(86)90157-8
Publication status	Published - 1986 Jun

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry

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10.1016/0022-2852(86)90157-8

Cite this

@article{7baa006de3504002bfc86867394d0710,

title = "High-resolution spectroscopy of the v2 = 2 a ← v2 = 1 s band of 14NH3",

abstract = "Twenty-one transitions of the v2 = 2 a ← v2 = 1 s hot band of 14NH3 have been observed by an infrared microwave sideband laser spectrometer with an absolute accuracy of 0.00002 cm-1. One hundred and seventeen transitions of the band have been obtained by a Fourier transform infrared spectrometer at a resolution of 0.005 cm-1. A weighted least-squares analysis of these data has been carried out to yield 17 molecular parameters for the v2 = 2 a state. These parameters reproduce the experimental frequencies with a root mean square deviation of 0.000123 cm-1. To calculate the frequencies to this accuracy it was necessary to take into account the Δ(K - l) = ±3 interaction between the v2 = 2 a and v4 = 1 a states.",

author = "Hiroyuki Sasada and Schwendeman, {R. H.} and Gottfried Magerl and Poynter, {R. L.} and Margolis, {J. S.}",

note = "Funding Information: {\textquoteright} This materiali s based upon work partially supported by the National Science Foundation under Grant",

year = "1986",

month = jun,

doi = "10.1016/0022-2852(86)90157-8",

language = "English",

volume = "117",

pages = "317--330",

journal = "Journal of Molecular Spectroscopy",

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T1 - High-resolution spectroscopy of the v2 = 2 a ← v2 = 1 s band of 14NH3

AU - Sasada, Hiroyuki

AU - Schwendeman, R. H.

AU - Magerl, Gottfried

AU - Poynter, R. L.

AU - Margolis, J. S.

N1 - Funding Information: ’ This materiali s based upon work partially supported by the National Science Foundation under Grant

PY - 1986/6

Y1 - 1986/6

N2 - Twenty-one transitions of the v2 = 2 a ← v2 = 1 s hot band of 14NH3 have been observed by an infrared microwave sideband laser spectrometer with an absolute accuracy of 0.00002 cm-1. One hundred and seventeen transitions of the band have been obtained by a Fourier transform infrared spectrometer at a resolution of 0.005 cm-1. A weighted least-squares analysis of these data has been carried out to yield 17 molecular parameters for the v2 = 2 a state. These parameters reproduce the experimental frequencies with a root mean square deviation of 0.000123 cm-1. To calculate the frequencies to this accuracy it was necessary to take into account the Δ(K - l) = ±3 interaction between the v2 = 2 a and v4 = 1 a states.

AB - Twenty-one transitions of the v2 = 2 a ← v2 = 1 s hot band of 14NH3 have been observed by an infrared microwave sideband laser spectrometer with an absolute accuracy of 0.00002 cm-1. One hundred and seventeen transitions of the band have been obtained by a Fourier transform infrared spectrometer at a resolution of 0.005 cm-1. A weighted least-squares analysis of these data has been carried out to yield 17 molecular parameters for the v2 = 2 a state. These parameters reproduce the experimental frequencies with a root mean square deviation of 0.000123 cm-1. To calculate the frequencies to this accuracy it was necessary to take into account the Δ(K - l) = ±3 interaction between the v2 = 2 a and v4 = 1 a states.

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High-resolution spectroscopy of the v₂ = 2 a ← v₂ = 1 s band of ¹⁴NH₃

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