Structure of hopeaphenol: X-ray analysis of the benzene solvate of dibromodeca-O-methylhopeaphenol

P. Coggon; A. T. McPhail; S. C. Wallwork

doi:10.1039/J29700000884

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Journal of the Chemical Society B: Physical Organic

Issue 0, 1970

Journal of the Chemical Society B: Physical Organic was published between 1966 - 1971.

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Structure of hopeaphenol: X-ray analysis of the benzene solvate of dibromodeca-O-methylhopeaphenol

P. Coggon, A. T. McPhail and S. C. Wallwork

J. Chem. Soc. B, 1970, 884-897

DOI: 10.1039/J29700000884

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Abstract
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The X-ray crystal structure analysis of the dibromo-derivative of deca-O-methylhopeaphenol has established the structure and absolute configuration of hopeaphenol, a heartwood extractive of Hopea odorata. The crystals are monoclinic, of space group C2, with four units of C₆₆H₆₀Br₂O₁₂,2C₆H₆ in the unit cell of dimensions a= 21·75, b= 11·31, c= 27·78 Å, β= 95° 25′. Phase determination was based initially on the two bromine atoms, and subsequent electron-density calculations revealed the non-hydrogen atoms. The atomic parameters were refined by least-squares methods, and the final R over 4688 independent observed reflexions was 11·9%.

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Structure of hopeaphenol: X-ray analysis of the benzene solvate of dibromodeca-O-methylhopeaphenol

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Journal of the Chemical Society B: Physical Organic

Structure of hopeaphenol: X-ray analysis of the benzene solvate of dibromodeca-O-methylhopeaphenol

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