Group 6 metal carbonyl complexes of a family of bulky phosphines

Spectroscopic and structural studies of chromium(0)-, molybdenum(0)- and tungsten(0)-pentacarbonylsilylphosphines

Colin P. Rooney, John L. Wade, Alexander C. Hinkle, Ryan M. Stolley, Susie M. Miller, Monte Helm

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The synthesis and spectroscopic data of six Group 6 metal complexes with the silylphosphine ligands, P(C6H5){Si(CH3)3}2 and P(H){Si(CH3)3}2 are reported. The crystal structures of M(P{R}{TMS}2)(CO)5, M = Cr, Mo, W; R = C6H5 and M = Cr; R = H, are reported. All the compounds exhibit the expected structures consisting of an octahedral geometry of five carbonyl ligands and one silylphosphine ligand around the metal center. Analysis of the spectroscopic and structural data, including the previously reported P{Si(CH3)3}3 ligand, indicate the steric bulk of the ligands decreases and the sigma-donating ability increases in the series P{Si(CH3)3}3 <P(C6H5) {Si(CH3)3}2 <P(H){Si(CH3)3}2.

Original languageEnglish
Pages (from-to)155-165
Number of pages11
JournalMain Group Chemistry
Volume7
Issue number2
DOIs
Publication statusPublished - 2008

Fingerprint

Phosphines
Tungsten
Molybdenum
Chromium
Polysilicon
Metals
Ligands
Coordination Complexes
Carbon Monoxide
Metal complexes
Crystal structure
Geometry

Keywords

  • Chromium complexes
  • Molybdenum complexes
  • Phosphine ligands
  • Silylphosphine ligands
  • Tungsten complexes
  • X-ray crystal structures

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry
  • Materials Chemistry

Cite this

Group 6 metal carbonyl complexes of a family of bulky phosphines : Spectroscopic and structural studies of chromium(0)-, molybdenum(0)- and tungsten(0)-pentacarbonylsilylphosphines. / Rooney, Colin P.; Wade, John L.; Hinkle, Alexander C.; Stolley, Ryan M.; Miller, Susie M.; Helm, Monte.

In: Main Group Chemistry, Vol. 7, No. 2, 2008, p. 155-165.

Research output: Contribution to journalArticle

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AU - Miller, Susie M.

AU - Helm, Monte

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AB - The synthesis and spectroscopic data of six Group 6 metal complexes with the silylphosphine ligands, P(C6H5){Si(CH3)3}2 and P(H){Si(CH3)3}2 are reported. The crystal structures of M(P{R}{TMS}2)(CO)5, M = Cr, Mo, W; R = C6H5 and M = Cr; R = H, are reported. All the compounds exhibit the expected structures consisting of an octahedral geometry of five carbonyl ligands and one silylphosphine ligand around the metal center. Analysis of the spectroscopic and structural data, including the previously reported P{Si(CH3)3}3 ligand, indicate the steric bulk of the ligands decreases and the sigma-donating ability increases in the series P{Si(CH3)3}3 <P(C6H5) {Si(CH3)3}2 <P(H){Si(CH3)3}2.

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