Optika Atmosfery i Okeana Journal

Vol. 23, issue 08, article # 5

Cherkasov M. R. Effects of the hyperfine splitting of levels in the pressure broadening of the methyl chloride rotational transitions. // Optika Atmosfery i Okeana. 2010. V. 23. No. 08. P. 660-665 [in Russian].
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Abstract:

In the frame of the impact approximation features of the methyl chloride isotopes ¹²CH₃³⁵Cl, ¹²CH₃³⁷Cl rotational transitions broadening, associated with the hyperfine splitting of levels due to the nuclear quadrupole interaction, are considered. The relaxation parameters are calculated and the values of the broadening coefficients are compared with the experimental data. The character of the doublet transition contour shape transformation by pressure is investigated.

Keywords:

broadening, shape of line, hyperfine splitting, line interference