N2 and O2 pressure broadening and pressure shift in the 4ν2 band of 16O12C32S

Fourier Transform Infrared Spectroscopy for the Measurement of Spectral Line Profiles

“…For OCS-N 2 and OCS-O 2 , pressure broadening coefficients in previous works for different bands (Bouanich et al, 1986;Domenech et al, 2000;Koshelev et al, 2006Koshelev et al, , 2009Mouchet et al, 1985;Galalou et al, 2011), illustrate that no vibrational effect can be clearly identified. To clarify this effect, Ref.…”

“…The largest one is 0 = (17.91 ± 3.02)×10 -3 cm -1 atm -1 , obtained for the R(51) line. These shifts are small compared with those of NH 3 and CH 3 CN; this makes them difficult to measure as evidenced from their relatively large errors (Galalou et al, 2011).…”

“…For OCS-N 2 and OCS-O 2 systems, Fig. 10 is a plot of the measured broadening coefficients versus |m| (m = −J for P(J ) lines and m = J +1 for R(J) lines) for the P and R branches of the 4ν 2 band (Galalou et al, 2011). It shows the decrease of these coefficients with increasing |m|.…”

“…To clarify this effect, Ref. (Galalou et al, 2011) presents data of pressure broadening coefficients reported in earlier works. The observation of these results does not illustrate any clear differences between the bands.…”

Division Xii / Commission 14 / Working Group Collision Processes

“…OH: lines broadened by N 2 , H 2 O and Ar (E) (Hwang et al 2008). OCS lines broadened by N 2 , O 2 and OCS (E) (Koshelev & Tretyakov 2009); by N 2 and O 2 (E) (Galalou et al 2011). I 2 : lines broadened by Ar (E) (Phillips & Perram 2008).…”