Preparation, Infrared and Raman Spectra, and Stereochemistries of Pentacoordinate Trimethylphosphine Complexes, MX_4•P(CH₃)₃ and MX_4•P(CD₃)₃ where M = Ge or Sn and X = Cl or Br

15 August 1973

journal article
Published by Canadian Science Publishing in Canadian Journal of Chemistry

Vol. 51 (16) , 2697-2709
https://doi.org/10.1139/v73-406

Abstract

The 1:1 adducts MX_4•PMe₃ (M = Ge or Sn; X = Cl or Br) are prepared by recrystallization of the respective 1:2 complexes from excess MX₄ acceptor. Solid state infrared and Raman Spectra and X-ray powder photographs suggest that these adducts are all trigonal bipyramidal with the ligand in an axial position. Normal coordinate calculations in C_3v symmetry (axial ligand) and C_s symmetry (equatorial ligand) support this assignment. The rather high ν(MP) frequencies indicate unusually strong metal–phosphorus donor bonds in these compounds.

Keywords

RAMAN SPECTRA
INFRARED

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Preparation, Infrared and Raman Spectra, and Stereochemistries of Pentacoordinate Trimethylphosphine Complexes, MX4•P(CH3)3 and MX4•P(CD3)3 where M = Ge or Sn and X = Cl or Br

Abstract

Keywords

Preparation, Infrared and Raman Spectra, and Stereochemistries of Pentacoordinate Trimethylphosphine Complexes, MX_4•P(CH₃)₃ and MX_4•P(CD₃)₃ where M = Ge or Sn and X = Cl or Br