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Related Concept Videos

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UV–Visible absorption spectra of conjugated dienes arise from the lowest energy π → π* transitions. The light-absorbing part of the molecule is called the chromophore, and the substituents directly attached to the chromophore are called auxochromes. A strong correlation exists between the absorption maxima, λmax, and the structure of a conjugated π system. The Woodward–Fieser rules predict the value of λmax for a given structure by adding the contributions...
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9,10-Dimethyl-9,10-per-oxy-9,10-dihydro-anthracene.

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Acta Crystallographica. Section E, Structure Reports Online
|January 5, 2011
PubMed
Summary

The crystal structure of C(16)H(14)O(2) was determined, revealing a molecule situated on a mirror plane with a 53.07° dihedral angle between its benzene rings. Intermolecular hydrogen bonds influence its crystal packing.

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Area of Science:

  • Crystallography
  • Molecular structure determination
  • Organic chemistry

Background:

  • Understanding molecular arrangements in the solid state is crucial for predicting material properties.
  • C(16)H(14)O(2) is a compound with potential applications in materials science.

Purpose of the Study:

  • To elucidate the precise three-dimensional structure of C(16)H(14)O(2) in the crystalline state.
  • To analyze the intermolecular interactions governing crystal packing.

Main Methods:

  • Single-crystal X-ray diffraction was employed to collect diffraction data.
  • The crystal structure was solved and refined using standard crystallographic software.

Main Results:

  • The asymmetric unit contains one half-molecule of C(16)H(14)O(2), located on a mirror plane.
  • A significant dihedral angle of 53.07° was observed between the two phenyl ring planes.
  • The crystal lattice is stabilized by intermolecular C-H⋯O hydrogen bonds.

Conclusions:

  • The study provides a detailed structural characterization of C(16)H(14)O(2).
  • The identified dihedral angle and hydrogen bonding patterns offer insights into the molecule's conformation and intermolecular forces.