Title screen

[References: p. 101-102 (67 tit.)]

We report high resolution Fourier Transform Infrared (FTIR) spectra of nitrogen trifluoride (trifluoroamine, NF3) measured with the Zürich Bruker prototype spectrometer (ZP 2001) and the SLS THz/FTIR setup (2009 prototype) in the range 20-3000 cm-1 at temperatures between 80 and 120 K using a collisional cooling cell designed with White cell multipath reflection optics and at room temperature (296 K). Except in the far-infrared with instrument limited resolution (Δν̃FWHM = 0.0008 cm-1) many of the spectra are nearly Doppler limited. Rovibrational transitions were assigned to 13 different vibrational bands and were used then in the fitting procedure. We re-investigated the bands 2ν4,ν1,ν2+ν4,ν1+ν4, 2ν3 and ν1+ν3, which had been studied before, and we have analyzed the ν2+ν3, 2ν1,ν1+ν2+ν4,ν1+ν2+ν3,ν2+2ν3,3ν3,ν1+2ν3 bands for the first time. All our analyses refer to the isotopomer 14NF3.