The Submillimeter-wave Spectrum of the Formaldehyde Isotopomer H2C18O in its Ground Vibrational State
| Autor: | Holger S. P. Müller, Frank Lewen, R. Gendriesch, Gisbert Winnewisser |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Physics
Astrochemistry Spectrum (functional analysis) Formaldehyde General Physics and Astronomy Overtone band State (functional analysis) Isotopomers Experimental physics chemistry.chemical_compound chemistry Rotational spectroscopy Physical and Theoretical Chemistry Atomic physics Mathematical Physics |
| Zdroj: | Zeitschrift für Naturforschung A. 55:486-490 |
| ISSN: | 1865-7109 0932-0784 |
| Popis: | The ground state rotational spectrum of H2C18O has been studied between 485 and 835 GHz with a sample of natural isotopic composition. Additional lines have been recorded around 130 GHz and near 1.85 THz, using a recently developed far-infrared laser-sideband spectrometer. The accurate new line frequencies were fit together with previously published data to obtain greatly improved spectroscopic constants. Both Watson's S and A reduced Hamiltonians have been employed yielding the rotational constants AA = 281 961.215 (82), BA = 36 902.275 51 (36), CA = 32 513.405 89 (36), AA = 281 961.371 (82), BA = 36 904.173 32 (91), and CA = 32 511.524 65 (86) MHz, respectively. |
| Databáze: | OpenAIRE |
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