2024
DOI: 10.1021/acs.jpca.3c06326
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High-Resolution Spectroscopic Investigation of the CH2CHO Radical in the Sub-Millimeter Region

Rosemonde Chahbazian,
Marie-Aline Martin-Drumel,
Olivier Pirali

Abstract: In this work, the pure rotational spectrum of the vinoxy radical (CH 2 CHO) has been studied at millimeter and sub-millimeter wavelengths (110−860 GHz). CH 2 CHO was produced by Habstraction from acetaldehyde (CH 3 CHO) using atomic fluorine in a double-pass absorption cell at room temperature. A Zeeman-modulation spectrometer, in which an external magnetic field generated inside the absorption cell is amplitude-modulated, was used to record the pure rotational transitions of the radical. The recorded spectra … Show more

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