Abstract

Infrared radio-frequency double-resonance spectroscopy has been carried out for 13CH3OH. Four K-type doublet transitions have been observed below 1 GHz, using the 9P(10) and 9P(12) CO2 laser lines. The results confirm previously proposed assignments of infrared absorption transitions and far-infrared laser emission lines observed in this molecule. Measurements of the A-state splittings have permitted the determination of the asymmetry splitting parameters SO(K) and SCO(K) for (n, K) = (0, 4) and (1, 3).

© 1987 Optical Society of America

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