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Hexaphenylhexaphosphinane benzene solvate.

Jan J Weigand1, Andreas Decken, Neil Burford

  • 1WWU Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 28/30, Münster D-48149, Germany. jweigand@uni-muenster.de

Acta Crystallographica. Section C, Crystal Structure Communications
|February 7, 2008
PubMed
Summary
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The molecular crystal structure of hexaphenylhexaphosphinane benzene solvate reveals a chair conformation for the six-membered phosphorus ring. Phenyl groups occupy equatorial positions, with molecules stacking along the c-axial direction.

Area of Science:

  • Solid-state chemistry
  • Crystallography
  • Organophosphorus chemistry

Background:

  • Phosphobenzene, a unique organophosphorus compound, exists in various forms.
  • Understanding the solid-state structure is crucial for its chemical properties.

Purpose of the Study:

  • To elucidate the molecular and crystal structure of hexaphenylhexaphosphinane benzene solvate.
  • To characterize the conformation of the phosphobenzene ring and the arrangement of phenyl substituents.

Main Methods:

  • Single-crystal X-ray diffraction analysis was employed.
  • Molecular symmetry and packing arrangements were determined.

Main Results:

  • The trigonal form of phosphobenzene was identified as a benzene solvate (C(36)H(30)P(6).C(6)H(6)).

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  • The six-membered P(6) ring adopts a chair conformation.
  • All six phenyl groups are situated in equatorial positions.
  • Molecules exhibit infinite stacking along the c-axial direction with C(3i) symmetry.

    • Conclusions:

    • The crystal structure provides definitive insights into the solid-state arrangement of phosphobenzene derivatives.
    • The observed chair conformation and equatorial phenyl group orientation are key structural features.