
hot-band transitions, some of which correspond to known

CF
4laser lines, have been identified and measured in high-resolution Doppler-limited spectra of
12CF
4near 16 μm, obtained with a tunable diode laser. From an analysis of these frequencies, the rotational and tensor splitting constants for the ν
2vibrational level have been determined. These constants, together with the

pump-band spectrum previously obtained, allow the laser emission frequencies for any given CO
2pump line to be calculated with an accuracy of 0.01-0.003 cm
-1.