The Millimeter- and Submillimeter-Wave Spectrum of Ethylene Oxide (c-C 2H 4O)

Details The Millimeter- and Submillimeter-Wave Spectrum of Ethylene Oxide (c-C 2H 4O) The Millimeter- and Submillimeter-Wave Spectrum of Ethylene Oxide (c-C 2H 4O)

May 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...499..517p&link_type=abstract

Astrophysical Journal v.499, p.517

Astronomy and Astrophysics

Astronomy

9

Ism: Molecules, Methods: Laboratory, Molecular Data, Radio Lines: Ism

Scientific paper

The cyclic molecule ethylene oxide (c-C2H4O) has recently been detected in the interstellar source Sgr B2N. Previous laboratory work on the rotational spectrum of this molecule extends only to a frequency of 123 GHz. We report here the extension of the laboratory rotational spectrum of this species through the frequency range 262-358 GHz using a new fast scan spectrometer (FASSST). The newly measured lines have been combined with previous data at lower frequencies to form a data set consisting of 662 lines that has been assigned and fitted via a standard semirigid asymmetric top analysis. The spectral constants obtained from the fit have allowed us to predict the frequencies of many additional lines.

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