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6,6'-Dimethoxygossypolone.

Carlos A Zelaya1, Edwin D Stevens, Michael K Dowd

  • 1Department of Chemistry, University of New Orleans, New Orleans, LA 70124, USA.

Acta Crystallographica. Section C, Crystal Structure Communications
|October 6, 2010
PubMed
Summary
This summary is machine-generated.

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The crystal structure of 6,6'-Dimethoxygossypolone, a dimeric molecule, reveals specific molecular conformations and bonding. This study details its monoclinic symmetry and unique quinoid ring arrangements.

Area of Science:

  • Crystallography
  • Organic Chemistry
  • Molecular Structure

Background:

  • 6,6 '-Dimethoxygossypolone is a dimeric molecule derived from the oxidation of 6,6 '-dimethoxygossypol.
  • Understanding the precise three-dimensional structure of such molecules is crucial for predicting their chemical and physical properties.

Purpose of the Study:

  • To elucidate the crystal structure of 6,6 '-Dimethoxygossypolone.
  • To characterize its molecular symmetry, conformation, and intermolecular interactions.

Main Methods:

  • Single-crystal X-ray diffraction analysis.
  • Crystallization from acetone.
  • Analysis of crystallographic data to determine atomic coordinates and molecular geometry.

Main Results:

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  • 6,6 '-Dimethoxygossypolone crystallizes in the monoclinic space group P2(1)/c.
  • Two molecules are present in the asymmetric unit.
  • Three quinoid rings exhibit flattened boat conformations, while one displays a flattened chair/half-chair conformation.
  • The angles between the naphthoquinone planes are acute (approx. 68-69°).
  • Intramolecular hydrogen bonds (O-H...O, C-H...O) and weak intermolecular C-H...O hydrogen bonds were identified.

Conclusions:

  • The crystal structure provides detailed insights into the solid-state arrangement of 6,6 '-Dimethoxygossypolone.
  • The observed conformations and hydrogen bonding patterns are key features of this dimeric molecule.