Laboratory millimeter- and submillimeter-wave spectrum of CH/sub 3/OD

Journal Article · Sun May 01 04:00:00 EDT 1988 · Astrophys. J., Suppl. Ser.; (United States)

DOI:https://doi.org/10.1086/191269· OSTI ID:6854647

Anderson, T; Crownover, R L; Herbst, E; De lucia, F C

The millimeter-wave and submillimeter-wave spectrum of CH/sub 3/OD, a deuterated isotope of methanol known to be present in the interstellar medium, has been studied in the laboratory. Like all isotopes of methanol, CH/sub 3/OD possesses a complex dense spectrum because of the phenomenon of internal rotation, sometimes referred to as torsional motion. Approximately 300 lines in the frequency range 130-700 GHz have been assigned. These lines involve transitions between rotational states with rotational quantum number J of not greater than 9 in both the A and the E substates of the lowest torsional state (v sub t = 0). The present data and previous data at lower frequencies (longer wavelengths) have been combined and analyzed by a procedure called the internal axis method. The analysis yields spectral constants for CH/sub 3/OD which, in turn, have been used to predict the frequencies of a number of other transitions of this species not measured in the laboratory. 19 references.

• Research Organization: Duke Univ., Durham, NC (USA)
• OSTI ID: 6854647
• Journal Information: Astrophys. J., Suppl. Ser.; (United States), Journal Name: Astrophys. J., Suppl. Ser.; (United States) Vol. 67; ISSN APJSA
• Country of Publication: United States
• Language: English

Related Subjects

640105 -- Astrophysics & Cosmology-- Galaxies
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ALCOHOLS
CHEMICAL COMPOSITION
ELECTROMAGNETIC RADIATION
HYDROXY COMPOUNDS
INTERSTELLAR SPACE
ISOTOPES
METHANOL
ORGANIC COMPOUNDS
RADIATIONS
RADIOWAVE RADIATION
SPACE
SPECTRA
SPECTROSCOPY