dc.creator Pearson, J. C. en_US dc.creator Drouin, Brian J. en_US dc.creator Braakman, Rogier en_US dc.creator Blake, Geoffrey A. en_US dc.date.accessioned 2008-01-12T13:03:32Z dc.date.available 2008-01-12T13:03:32Z dc.date.issued 2006 en_US dc.identifier 2006-FC-05 en_US dc.identifier.uri http://hdl.handle.net/1811/30830 dc.description Author Institution: Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109; Planetary Sciences, California Institute of Technology, Mail Stop 150-21, Pasadena, CA 91125 en_US dc.description.abstract The rotational spectrum of methanol is characterized by an asymmetric top overall rotation coupled with an intermediate barrier three fold hindered rotation. The spectrum progresses from a torsionally modified asymmetric top in the $v_{t}=0$ state to a rotationally modified torsion by the $v_{t}=2$ state. The $v_{t}=3$ state lies well above the torsional barrier and in close proximity to the CO stretch vibration. The $v_{t}=3$ microwave spectrum has been assigned up to $J=34$ in over 1 THz of frequency measured spectra. In spite of the success in assigning the a-type R-branches the b-type spectra is surprisingly weak suggesting that the torsion significantly modifies the intensities of the few $K$ levels in close enough proximity to have transitions below 2.5 THz. en_US dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE $v_{t}=3$ STATE OF METHANOL en_US dc.type article en_US
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