SO2 and N-ethylformamide lines

The system permits automatic overnight observations, and integration times as long as 2.4x10^5^ seconds have been reached. The chamber is equipped with a radiofrequency source to produce cold plasmas, and with four ultraviolet lamps to study photochemical processes. Plasmas of CH_4_, N_2_, CH_3_CN, NH_3_, O_2_, and H_2_, among other species, have been generated and the molecular products easily identified by the rotational spectrum, and via mass spectrometry and optical spectroscopy.

Finally, the rotational spectrum of the lowest energy conformer of CH_3_CH_2_NHCHO (N-ethylformamide), a molecule previously characterized in microwave rotational spectroscopy, has been measured up to 116.5GHz, allowing the accurate determination of its rotational and distortion constants and its search in space.