Molecular structure of 1,1-difluoroethylene as determined by gas phase electron diffraction and microwave data |
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Authors: | Frans C Mijlhoff Gerrit H Renes Kunio Kohata Kazuko Oyanagi Kozo Kuchitsu |
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Institution: | Gorlaeus Laboratories der Rijksuniversiteit, Postbus 75, LeidenThe Netherlands;Department of Chemistry, Faculty of Science, University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113 Japan |
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Abstract: | The structure of 1,1-difluoroethylene was determined, from gas phase electron diffraction data obtained independently in Leiden and Tokyo and the rotational constants of F2CCH2, F2CCHD and F2CCD2 derived from the microwave study by Chauffoureaux. The two electron diffraction data agreed without significant discrepancy. From a joint least squares analysis of the diffraction and microwave data, the following rg bond distances and rz bond angles were derived: CC = 1.340 ± 0.006 Å, C-F = 1.315 ± 0.003 Å, C-H = 1.091 ± 0.010 Å, ∠C-C-F = 124.7 ± 0.3°, ∠C-C-H = 119.0 ± 0.4°, where the uncertainties represent estimated limits of error. |
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