The molecular geometry of a heptacyclotetradecane from gas-phase electron diffraction
1986; Elsevier BV; Volume: 140; Issue: 3-4 Linguagem: Inglês
10.1016/0022-2860(86)87005-3
ISSN1872-8014
AutoresIstván Hargittai, J. Brunvoll, S. J. Cyvín, Alan P. Marchand,
Tópico(s)Molecular spectroscopy and chirality
ResumoElectron diffraction established firmly the structure of a heptacyclo [6.6.0.02,6.03,13.04,11.05,9.010,14] tetradecane molecule in which two norbornane units are rotated 90° relative to each other and linked by four methine bridges. The longest bond is the ethano bridge (1.586 ± 0.004 Å, rg) and the methine bridge is considerably shorter (1.528 ± 0.006 Å rg) than the mean CC bond length of the norbornane unit (1.557 Å). The molecular structure is generally consistent with the geometry of its crystalline di-tert-butoxy derivative as well as with that of gaseous norbornane.
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