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ABSORPTION SPECTOSCOPY of the $n = 0 \rightarrow n = 2$ PSEUDOROTATIONAL BAND in TETRAHYDROFURAN

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/20101

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Title: ABSORPTION SPECTOSCOPY of the $n = 0 \rightarrow n = 2$ PSEUDOROTATIONAL BAND in TETRAHYDROFURAN
Creators: Melnik, Dmitry G.; Gopalakrishnan, Sandhya; Miller, Terry A.; Butler, Rebecca A. H.; De Lucia, Frank C.
Issue Date: 2001
Abstract: The previously $reported^{a}$ rotational structure observed in the region of 193-335 GHz using the pulsed jet FASSST scan spectrometer in tetrahydrofuran (THF) is assigned as originating from pseudo-rotational bands. A total of 121 lines were observed of which 112 lines were assigned to $n = 0 \rightarrow n = 2$ band, and 9 are tentatively assigned to $n = 0 \rightarrow n = 2$ band using the molecular constants of THF reported in microwave $studies^{b}$. All available data from the microwave and the present studies were globally fit to produce an improved set of molecular constants. The origin of the $n = 0 \rightarrow n = 2$ is determined to be equal to 269613.25 MHz. An experimentally observed deviation of the selection rules from those previously $derived^{c}$ is discussed.
URI: http://hdl.handle.net/1811/20101
Other Identifiers: 2001-RB-08
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