National Tsing Hua University Institutional Repository:Crystal and Molecular Structure of cis-4,5-Dichloro-1,1,2,2-tetrafluoro-1,2-disilacyclohexane
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    NTHUR > Presidents > Liu, Chao-Shiuan (1987-1993) > LCS Journal / Magazine Articles >  Crystal and Molecular Structure of cis-4,5-Dichloro-1,1,2,2-tetrafluoro-1,2-disilacyclohexane

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    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.
    Teacher: 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
    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.
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    Appears in Collections:[Liu, Chao-Shiuan (1987-1993)] LCS Journal / Magazine Articles
    [Department of Chemistry] CHEM Journal / Magazine Articles

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