dc.creator Curl, R. F., Jr. en_US dc.creator Hodgeson, Jimmie A. en_US dc.date.accessioned 2006-06-15T13:11:19Z dc.date.available 2006-06-15T13:11:19Z dc.date.issued 1963 en_US dc.identifier 1963-C-3 en_US dc.identifier.uri http://hdl.handle.net/1811/8196 dc.description $^{*}$This work supported by grant NSF-G17343 from the National Science Foundation. $^{\dag}$Alfred P. Sloan Foundation Fellow. en_US dc.description Author Institution: Department of Chemistry, Rice University en_US dc.description.abstract The $J\; 0 \rightarrow 1$ and $1 \rightarrow 2$ a-type transitions of methyl isocyanate $(CH_{3}NCO)$ have been observed. The spectrum is moderately complicated by internal rotation. Four lines in the 0-1 region and nineteen lines in the 1-2 region are easily observable at dry-ice temperature. The spectrum of the molecule have been calculated for range of CNC bond angles from $120^{\circ}$ to $140^{\circ}$ and a range of barriers from 0 to 1200 cal/mole. The best qualitative agreement with the observed spectrum corresponds to a CNC bond angle of approximately $140^{\circ}$ and a surprisingly low barrier to internal rotation for the methyl group of about 20 cal./mole. Efforts to improve this qualitative agreement have to far been unsuccessful. en_US dc.format.extent 81266 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title THE MICROWAVE SPECTRUM OF METHYL $ISOCYANATE^{*}$ en_US dc.type article en_US
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