Abstract
Because of their lower depleting effect on the ozone in the atmosphere, there has been much recent interest in the fluorinated hydrocarbons as replacements for chlorofluorocarbons and hydrochlorofluorocarbons. Since data on the broadening of rotational lines are required for quantitative monitoring of trace compounds in the atmosphere (especially broadening by collision with N 2 and O 2), self- and pressure-broadening of rotational transitions of CF 3CFH 2 have been studied and the self-, N 2- and O 2-broadening coefficients evaluated. In particular, we have analyzed the line shape of the following b type transitions: J=10 0,10←9 1,9 and J=10 1,10←9 0,9 degenerate doublet, J=15 1,15←14 0,14 and J=20 0,20←19 1,19. The source frequency modulation technique has been employed to record the spectra of the rotational transitions investigated.
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