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 L. Helm

doi:10.1080/10241220802376535

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 L. Helm

Pacific Northwest National Laboratory

Research output: Contribution to journal › Article

3 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 language	English
Pages (from-to)	155-165
Number of pages	11
Journal	Main Group Chemistry
Volume	7
Issue number	2
DOIs	https://doi.org/10.1080/10241220802376535
Publication status	Published - Dec 1 2008

Keywords

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

ASJC Scopus subject areas

Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1080/10241220802376535

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Rooney, C. P., Wade, J. L., Hinkle, A. C., Stolley, R. M., Miller, S. M., & Helm, M. L. (2008). Group 6 metal carbonyl complexes of a family of bulky phosphines: Spectroscopic and structural studies of chromium(0)-, molybdenum(0)- and tungsten(0)-pentacarbonylsilylphosphines. Main Group Chemistry, 7(2), 155-165. https://doi.org/10.1080/10241220802376535

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 L.

In: Main Group Chemistry, Vol. 7, No. 2, 01.12.2008, p. 155-165.

Research output: Contribution to journal › Article

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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.",

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N2 - 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.

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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