N-2 BROADENING IN THE (CO)-C-13-O-16 2-0-BAND AROUND 4167 CM(-1)

N-2 broadening coefficients have been measured for 65 lines of the (CO )-C-13-O-16 2-0 band using a Fourier transform spectrometer. These lin es are located in the spectral range 4011-4252 cm(-1). The spectra wer e recorded with 99% isotopically pure (CO)-C-13 in a White-type cell a t a resolution of 0.005 cm(-1). Voigt profiles convolved with the FTS apparatus function were fitted to the experimental lineshapes using a nonlinear least-squares fit technique. From the fits the Lorentzian HW HM was determined as function of N-2 pressure. Pressure broadening coe fficients for m between -33 and +34 were obtained with uncertainties o f 5.8%. The results are compared to earlier published N-2 broadening c oefficients and our measurements in the 2-0 band of (CO)-C-12-O-16. To our knowledge this is the first investigation of (CO)-C-13 pressure b roadening. (C) 1996 Academic Press, Inc.