Abstract
Laser-induced fluorescence excitation spectra of the methoxy radical have been recorded under high resolution in a supersonic jet expansion. The rotational structure associated with the 31 0 band of methoxy has been identified in the midst of strong overlapping rotational transitions due to the hydroxyl radical in the 32240 - 32580 cm−1 spectral region. Rotationally-resolved à 2A1 – [Xtilde] 2E spectra of the 31 0 band of methoxy have been explicitly assigned using the nomenclature for prolate symmetric top transitions in doublet states.