The laboratory millimeter- and submillimeter-wave spectrum of CH3OD

Abstract

view Abstract Citations (44) References (16) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Laboratory Millimeter- and Submillimeter-Wave Spectrum of CH 3OD Anderson, Todd ; Crownover, Richard L. ; Herbst, Eric ; De Lucia, Frank C. Abstract The millimeter-wave and submillimeter-wave spectrum of CH3OD, a deuterated isotope of methanol known to be present in the interstellar medium, has been studied in the laboratory. Like all isotopes of methanol, CH3OD 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 (vt = 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 CH3OD which, in turn, have been used to predict the frequencies of a number of other transitions of this species not measured in the laboratory. Publication: The Astrophysical Journal Supplement Series Pub Date: May 1988 DOI: 10.1086/191269 Bibcode: 1988ApJS...67..135A Keywords: Interstellar Matter; Methyl Compounds; Millimeter Waves; Submillimeter Waves; Astronomical Spectroscopy; Line Spectra; Radio Spectra; Astrophysics; INTERSTELLAR: MOLECULES; LABORATORY SPECTRA; LINE IDENTIFICATIONS; MOLECULAR PROCESSES full text sources ADS |