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    National Tsing Hua University Institutional Repository > 歷任校長 > 劉兆玄 (1987-1993) > 期刊論文 >  Crystal and Molecular Structure of cis-4,5-Dichloro-1,1,2,2-tetrafluoro-1,2-disilacyclohexane


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81076


    Title: Crystal and Molecular Structure of cis-4,5-Dichloro-1,1,2,2-tetrafluoro-1,2-disilacyclohexane
    Authors: Hseu, T. H.;Hwang, T. L.;Liu, C. S.
    教師: 劉兆玄
    Date: 1981
    Publisher: American Chemical Society
    Relation: INORGANIC CHEMISTRY, American Chemical Society, Volume 20, Issue 7, 1981, Pages 2182–2185
    Keywords: Crystal
    Molecular
    Dichloro
    tetrafluoro
    disilacyclohexane
    Abstract: Crystals of the title compound are monoclinic, of space group P2]/n with Z = 4, a = 6.901 (4) A, b = 10.002 (8) A, c = 13.478 (4) A, 0 = 91.55 (4)O, and D, = 1.837 g/cm3. Intensity data were obtained on a single-crystal diffractometer with Cu Ka radiation. The structure was solved by direct methods and refined by full-matrix least-squares to R = 0.069 for 1101 independent reflections. The enantiomeric pairs of the molecule are related by the n glide symmetry in the crystal. The conformation of the six-membered ring is close to a half-chair; the disilane part of the ring is considerably flattened with the bond length and ring torsional angle of the Si-Si bond being 2.318 (3) 8, and 8.9 (4)’, respectively. On the basis of this molecular structure, the energy barrier of the ring inversion process is discussed and compared with those of cyclohexanes.
    Relation Link: http://pubs.acs.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/81076
    Appears in Collections:[劉兆玄 (1987-1993)] 期刊論文
    [化學系] 期刊論文

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