The 8.5-µm spectral region of methyl fluoride was recently studied in terms of line positions, intensities and self-broadening coefficients at room temperature [JQSRT 2016;185:58–69]. The present work is dedicated to measurements of N2-broadening coefficients for transitions of the ν6 band. Based on new set of Fourier transform spectra using various mixtures of CH3F and N2, a multispectrum fitting procedure was used to retrieve N2-broadening for 1189 transitions between 1105 and 1291 cm−1. 899 transitions have been studied to model the J- and K-rotational quantum number dependences of the N2-broadening coefficients in order to generate any transitions of CH3F assuming no vibrational dependence. The accuracy of the retained N2-broadening coefficients was estimated to be between 2–5%. These measurements have been compared with previous studies from the literature obtained for other bands of CH3F. Comparison with the results obtained for similar empirical J- and K-rotational model applied to CH3Cl, CH3Br and CH3F (this work) molecules is also presented.
