Crystal structures and vibrational spectra of triphenylphosphonium hexahalogenodigallates(II), (Ph3PH)2Ga2X6 (X=Cl, Br, or I)

  • Masood A. Khan
  • Dennis G. Tuck
  • Michael J. Taylor
  • D. A. Rogers


The crystal structures of the gallium(II) complexes (Ph3PH)2Ga2X6 (X=Cl, Br, I) have been determined. The anions are Ga-Ga bonded species, with staggered ethane conformations; the length of the Ga-Ga bond increases only slightly along the series I>Br>Cl, although there are significant changes in the Ga-Ga stretching force constant in the order Cl>Br>I. The vibrational spectra and derived force constants are discussed, as is the splitting of thev(P-H) [andv(P-D)] mode of the cation which is related to disorder in the structure of the neighboring Ga2X62− anions.


Physical Chemistry Crystal Structure Inorganic Chemistry Ethane Gallium 
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Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • Masood A. Khan
    • 1
  • Dennis G. Tuck
    • 1
  • Michael J. Taylor
    • 2
  • D. A. Rogers
    • 2
  1. 1.Department of ChemistryUniversity of WindsorWindsorCanada
  2. 2.Department of ChemistryUniversity of AucklandAucklandNew Zealand

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