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Foreign Gas Broadening of the Lines of Hydrogen Chloride and Carbon Monoxide

By: Contributor(s): Publication details: National Institute of Standards and Technology, 1962.Subject(s): Genre/Form: Online resources: Summary: The Lorentz line shape formula is applied in the determination of half-width parameters due to foreign gas broadening. Various pressures of SO(2) and CO(2) are added to HCl and CO, respectively. The (1-0) and (2-0) HCl bands, as well as the (2-0) CO band, are investigated, and there is found to be a very definite relationship between the half-width and the rotational quantum number, J. No error of more than 5 percent should be expected for the values of γ(0) presented. Some pressure-shifts are observed for HCl, but no quantitative determinations are made.
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/pmc/articles/PMC6696534/

The Lorentz line shape formula is applied in the determination of half-width parameters due to foreign gas broadening. Various pressures of SO(2) and CO(2) are added to HCl and CO, respectively. The (1-0) and (2-0) HCl bands, as well as the (2-0) CO band, are investigated, and there is found to be a very definite relationship between the half-width and the rotational quantum number, J. No error of more than 5 percent should be expected for the values of γ(0) presented. Some pressure-shifts are observed for HCl, but no quantitative determinations are made.

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