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2,2'-Spirobi(1,3-benzodithiole).

K Ueda1, M Iwamatsu, T Sugimoto

  • 1Research Institute for Advanced Science and Technology, Osaka Prefecture University, Sakai, Osaka 599, Japan.

Acta Crystallographica. Section C, Crystal Structure Communications
|July 21, 2004
PubMed
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The crystal structure of 2,2′-spirobi(1,3-benzodithiole) reveals twofold rotation symmetry. Close contacts between atoms indicate unique molecular packing due to ring bending.

Area of Science:

  • Crystallography
  • Organic Chemistry
  • Materials Science

Background:

  • 2,2′-spirobi(1,3-benzodithiole) is a unique organic molecule with potential applications in materials science.
  • Understanding its solid-state structure is crucial for predicting its properties and designing new materials.

Purpose of the Study:

  • To determine the precise three-dimensional crystal structure of 2,2′-spirobi(1,3-benzodithiole).
  • To analyze the molecular geometry, symmetry, and intermolecular interactions within the crystal lattice.

Main Methods:

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

Main Results:

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  • The molecule exhibits crystallographic twofold rotation symmetry, with the axis passing through the spiro-carbon atom.
  • The four sulfur atoms are arranged in two nearly orthogonal CS(2) planes around the spiro-carbon.
  • Significant ring bending leads to close contacts between carbon atoms of the benzo groups and sulfur atoms of the adjacent benzodithiole unit.

Conclusions:

  • The determined crystal structure provides detailed insights into the molecular conformation and packing of 2,2′-spirobi(1,3-benzodithiole).
  • The observed close contacts suggest potential for non-covalent interactions that could influence the material's properties.