Abstract
AbstractSelf‐broadened widths of 28SiH4 in the ν1 Q‐branch have been measured at room temperature (295 K) using high‐resolution stimulated Raman Spectroscopy. These collisional widths have been obtained by fitting a super‐position of Voigt profiles to the experimental spectra in the pressure range 28–154 Torr. No evidence for line mixing within the tetrahedral components of a Q(J) line has been found. The line broadening coefficients for J up to 13 depend weakly on the rotational quantum number. The mean value is 103.7 × 10−3 cm−1 atm−1.
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