Infrared diode laser spectroscopy of the ν3 band of the fluoromethyl radical, CH 2F

Abstract

The ν 3 (CF stretching) band of the CH 2F radical was observed with Doppler-limited resolution, by using infrared diode laser spectroscopy with Zeeman and discharge current modulation. The CH 2F radical was generated directly in a multiple reflection absorption cell by the electrical discharge in CH 2FCOOCH 3. The observed spectrum was analyzed to yield the band origin of 1170.4165(6) cm −1 with one standard error in parentheses, in addition to the rotational constants, centrifugal distortion constants, and spin-rotation interaction constants in the v 3 = 1 state.