Spectroscopy of the A∼1A2←X∼1A1 transition of formaldehyde in the 30140-30790 cm−1 range: The 201403 and 202401 rovibrational bands

Room-temperature absorption spectroscopy of the A∼1A2←X∼1A1 transition of formaldehyde has been performed in the 30140-30790 cm−1 range allowing the identification of individual lines of the 201403 and 202401 rovibrational bands. Using tunable ultraviolet continuous-wave laser light, individual rotational lines are well resolved in the Doppler-broadened spectrum. Making use of genetic algorithms, the main features of the spectrum are reproduced. Spectral data is made available as Supporting Information.