THE MILLIMETER- AND SUBMILLIMETER-WAVE SPECTRUM OF THE TRANS AND GAUCHE CONFORMERS OF ETHYL FORMATE

Journal Article · Wed Apr 15 04:00:00 EDT 2009 · Astrophysical Journal, Supplement Series

DOI:https://doi.org/10.1088/0067-0049/181/2/433; COUNTRY OF INPUT: INTERNATIONAL ATOMIC ENERGY AGENCY (IAEA)· OSTI ID:21269221

Medvedev, Ivan R; De Lucia, Frank C; Herbst, Eric ^[1]

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1. Department of Physics, Ohio State University, Columbus, OH 43210-1106 (United States)

Since methyl formate (HCOOCH{sub 3}) is found to have a high abundance in hot molecular cores and other types of clouds in the galactic center, it is reasonable to search among such sources for detectable abundances of the more complex analog ethyl formate (HCOOC{sub 2}H{sub 5}). Following a previous study of the millimeter-wave spectrum of ethyl formate, we have extended the analysis of the vibrational ground state of the trans and gauche conformers of ethyl formate into the submillimeter-wave range. Over 2200 new spectral lines have been measured and analyzed at frequencies up to 380 GHz. Fitting the data for each conformer to a Watson A-reduced asymmetric-top Hamiltonian has allowed us to predict the frequencies and intensities of many more transitions through 380 GHz.

• OSTI ID: 21269221
• Journal Information: Astrophysical Journal, Supplement Series, Journal Name: Astrophysical Journal, Supplement Series Journal Issue: 2 Vol. 181; ISSN 0067-0049; ISSN APJSA2
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
ABUNDANCE
ASYMMETRY
CATALOGS
ETHYL RADICALS
FORMATES
GHZ RANGE 100-1000
GROUND STATES
HAMILTONIANS
SPECTRA