The mid-IR spectrum of HFC-134a, CF3CH2F, entrained in a supersonic jet expansion has been measured at high and low resolution and the rotational structure of the C-type bands ν14 (1204 cm-1) and ν15 (974 cm-1) has been analysed along with the hot band ν15 + ν18 ← ν18. Rotational constants have been obtained and used to simulate the band structure, enabling the rotational temperature in the jet to be estimated at 65 K. In addition, low-resolution far-IR spectra of CF3CH2F in a room-temperature gas cell have been recorded and the vibrational fundamentals more completely assigned. These results are compared with previous experimental values and those predicted from molecular orbital calculations.
|Number of pages||6|
|Journal||Journal of the Chemical Society - Faraday Transactions|
|Publication status||Published - 1 Dec 1995|