| DOI | Resolve DOI: https://doi.org/10.1063/1.1349425 |
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| Author | Search for: Xia, Changhong1; Search for: Walker, Kaley A.1; Search for: McKellar, A.R.W.1 |
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| Affiliation | - National Research Council Canada. NRC Steacie Institute for Molecular Sciences
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| Format | Text, Article |
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| Subject | carbon compounds; infrared spectra; millimetre wave spectra; organic compounds; quasimolecules; rotational isomerism; vibrational states |
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| Abstract | The weakly bound van der Waals complex CH₄–CO has been observed spectroscopically for the first time in the infrared (C–O stretching, ≈2143 cm⁻¹) and millimeter wave (80–107 GHz) regions. The spectraanalyzed here resemble quite closely those of the rare gas–carbon monoxide complexes, like Ne–CO and Ar–CO, and they almost certainly arise from CH₄–CO complexes composed of CH₄ in the lowest j=0 rotational state of A symmetry. The effective ground state intermolecular separation is 3.994 Å. Predictions are given here for the K=0 and 1 pure rotational microwave transitions of CH₄–CO in the A state. The infrared spectrum shows numerous additional transitions which must be due to CH₄–CO composed of methane in the F and E symmetry states, but these have not yet been assigned. Future microwave measurements on these F and E states will aid further progress on the infrared spectrum. |
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| Publication date | 2001-03-15 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 12327877 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | d92397ca-0c14-46e5-b884-33933c06575a |
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| Record created | 2009-09-10 |
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| Record modified | 2020-03-27 |
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