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Additional measurements and a refined analysis of the millimeter- and submillimeter-wave spectrum of methanol

Journal Article · · Astrophysical Journal, Supplement Series; (USA)
DOI:https://doi.org/10.1086/191434· OSTI ID:6710165
; ;  [1]
  1. Duke Univ., Durham, NC (USA) Koeln Universitaet, Cologne (Germany, F.R.)
A total of 414 previously unobserved millimeter- and submillimeter-wave transitions of (C-12)H3OH through J = 10 and v(t) = 2 are assigned. These data and previous measured spectral transitions are combined and fitted by a modified internal axis method (IAM) treatment in which the A and E substates are treated separately and a wide variety of new rotational-torsional interaction terms are employed. The modified IAM treatment reduces the overall rms deviation of the fits to the level of experimental accuracy. The resultant spectroscopic constants allow for the accurate prediction of 569 additional transitions through J = 12 or less. 25 refs.
OSTI ID:
6710165
Journal Information:
Astrophysical Journal, Supplement Series; (USA), Journal Name: Astrophysical Journal, Supplement Series; (USA) Vol. 72; ISSN APJSA; ISSN 0067-0049
Country of Publication:
United States
Language:
English