Microwave spectra of cis-glyoxal-d1 and cis-glyoxal-d2
| Autor: | Y. S. Li, James R. Durig, A.R.H Cole |
|---|---|
| Rok vydání: | 1976 |
| Předmět: |
chemistry.chemical_classification
Materials science Molecular spectroscopy Atomic and Molecular Physics and Optics D-1 Bond length chemistry.chemical_compound Nuclear magnetic resonance chemistry Chemical bond Microwave spectra Molecule Glyoxal Physical chemistry Compounds of carbon Physical and Theoretical Chemistry Spectroscopy |
| Zdroj: | Journal of Molecular Spectroscopy. 61:346-349 |
| ISSN: | 0022-2852 |
| DOI: | 10.1016/0022-2852(76)90325-8 |
| Popis: | The microwave spectra of cis-glyoxal-d1 (C2HDO2) and cis-glyoxal-d2 (C2D2O2) have been obtained and assigned in the range from 18 to 40 GHz. The determined rotational constants for C2HDO2 were: A = 23857.40 ± 0.36, B = 6075.89 ± 0.09, and C = 4849.65 MHz; and for C2D2O2, A = 21521.82 ± 0.21, B = 5968.99 ± 0.04, and C = 4680.61 ± 0.05 MHz. By using these rotational constants along with those for the light molecule and an assumed CO bond length of 1.207 A, the following structural parameters were obtained from a least-squares fit: r CC) = 1.514 A , r (CH) = 1.130 A ,∢CCO = 123.4°, and ∢CCH = 116.2°. It was found that the carbon-carbon bond distance was the only structural parameter which was significantly affected by the assumed carbon-oxygen bond distance. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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