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FAR INFRARED EMISSION SPECTRA OF CsI, NaCl AND KCl

B. Guo, V. Braun, R. S. Ram, G.A. McRae, K. Q. Zhang, P. F. Bernath

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Abstract

The far infrared emission spectra of gas phase CsI, NaCl and KCl, have been observed using a Bruker IFS 120HR spectrometer. Vibration-rotation emission spectra of CsI near $100 cm^{-1}$ involving bands from 1-0 to 30-29 were analyzed. Improved vibrational constants of CsI were derived ($\\omega_{e}=119,1645(12) cm^{-1}$, $\\omega_{e}y_{e} =0.250354(93) cm^{-1}, \\omega_{e}Y_{e} =0.0002870(19) cm^{-1}$). High-resolution vibration-rotational data of KCl and NaCl will also be presented along with the Dunham constants.

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What this paper is about

The far infrared emission spectra of gas phase CsI, NaCl and KCl, have been observed using a Bruker IFS 120HR spectrometer. Vibration-rotation emission spectra of CsI near $100 cm^{-1}$ involving bands from 1-0 to 30-29 were analyzed. Improved vibrational constants of CsI were derived ($\\omega_{e}=119,1645(12) cm^{-1}$, $\\omega_{e}y_{e} =0.250354(93) cm^{-1}, \\omega_{e}Y_{e} =0.0002870(19) cm^{-1}$). High-resolution vibration-rotational data of KCl and NaCl will also be presented along with the Dunham constants.

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Available abstract

The far infrared emission spectra of gas phase CsI, NaCl and KCl, have been observed using a Bruker IFS 120HR spectrometer. Vibration-rotation emission spectra of CsI near $100 cm^{-1}$ involving bands from 1-0 to 30-29 were analyzed. Improved vibrational constants of CsI were derived ($\\omega_{e}=119,1645(12) cm^{-1}$, $\\omega_{e}y_{e} =0.250354(93) cm^{-1}, \\omega_{e}Y_{e} =0.0002870(19) cm^{-1}$). High-resolution vibration-rotational data of KCl and NaCl will also be presented along with the Dunham constants.

Key concepts: Spectral line, Emission spectrum, Infrared, Chemistry, Physics, Optics, Astronomy

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