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Related Experiment Videos

3,7-dibromohinokitiol: a redetermination.

Gideon Steyl1, Andreas Roodt

  • 1Department of Chemistry and Biochemistry, Rand Afrikaans University, Johannesburg 2006, South Africa.

Acta Crystallographica. Section C, Crystal Structure Communications
|August 29, 2003
PubMed
Summary
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This study redetermined the structure of 3,7-dibromo-2-hydroxy-6-isopropylcyclohepta-2,4,6-trien-1-one. Key findings include strong hydrogen bonds and short bromine interactions, providing precise structural dimensions.

Area of Science:

  • Organic Chemistry
  • Crystallography

Background:

  • The compound 3,7-dibromo-2-hydroxy-6-isopropylcyclohepta-2,4,6-trien-1-one was previously described.
  • Accurate structural data is crucial for understanding chemical properties and reactivity.

Purpose of the Study:

  • To redetermine the crystal structure of 3,7-dibromo-2-hydroxy-6-isopropylcyclohepta-2,4,6-trien-1-one.
  • To analyze intermolecular and intramolecular interactions within the crystal lattice.

Main Methods:

  • Single-crystal X-ray diffraction was employed for structural analysis.
  • Detailed crystallographic measurements were performed.

Main Results:

  • The redetermined structure confirmed the presence of strong intermolecular (2.17 Å) and intramolecular (2.06 Å) hydrogen bonds.

Related Experiment Videos

  • Short bromine-bromine (Br...Br) and bromine-ring centroid (Br...ring centroid) interactions were identified.
  • Precise bond lengths (e.g., C=O: 1.252 Å, C-OH: 1.355 Å, C-Br: ~1.905 Å) and a ring torsion angle (-6.7°) were determined.

    • Conclusions:

    • The redetermined structure provides a more accurate understanding of the compound's molecular geometry.
    • The identified hydrogen bonds and bromine interactions significantly influence the crystal packing and molecular conformation.