163162-57-0

Basic information

• Product Name: fac-W(CO)3(PMe3)(η(2)-1,1'-bis(diphenylphosphino)ferrocene)
• Synonyms: fac-W(CO)3(PMe3)(η(2)-1,1'-bis(diphenylphosphino)ferrocene)
• CAS NO: 163162-57-0
• Molecular Weight: 898.35
• Mol File: 163162-57-0.mol

Chemical Properties

• CAS DataBase Reference: fac-W(CO)3(PMe3)(η(2)-1,1'-bis(diphenylphosphino)ferrocene)(CAS DataBase Reference)
• NIST Chemistry Reference: fac-W(CO)3(PMe3)(η(2)-1,1'-bis(diphenylphosphino)ferrocene)(163162-57-0)
• EPA Substance Registry System: fac-W(CO)3(PMe3)(η(2)-1,1'-bis(diphenylphosphino)ferrocene)(163162-57-0)

Safety Data

• Hazardous Substances Data: 163162-57-0(Hazardous Substances Data)

Upstream product

• 163162-55-8 C₃₉H₃₁FeNO₃P₂W 
• 594-09-2 trimethylphosphane 
• 163162-55-8 fac-W(CO)3(acetonitrile)(η(2)-1,1'-bis(diphenylphosphino)ferrocene) 

Relevant articles and documents

Ligand effects on the redox behavior of bimetallic tungsten(0)/ ferrocene(II) complexes

This work presents a synthesis of bimetallic tungsten(0)/ferrocene(II) complex dppf[W(CO)3PMe3] and detailed comparisons of the redox behavior of dppf[W(CO)3PMe3], dppf[W(CO) 4], and dppf[W(CO)3CH3CN]. Reaction of PMe 3 with dppf[W(CO)3CH3CN] in dichloromethane under an inert atmosphere yields dppf[W(CO)3PMe3]. Slow cooling of the column purified product yields yellow blocks suitable for X-ray diffraction analysis. Structural, spectroscopic, electrochemical, and computational studies show that all three complexes have multiple redox events corresponding to tungsten and ferrocene oxidation. The complexes' distal tungsten ligands tune the first redox event over a broad range, from -37 to -200 meV versus ferrocene. Computational studies suggest that the ligand tunes the tungsten moiety's redox potential, changing the first redox event from ferrocene(II) oxidation to tungsten(0) oxidation. This bimetallic complex is thus an interesting candidate for redox-based sensing architectures.

Syntheses, characterization and facial-meridional isomerism of tungsten tricarbonyl diphosphine complexes

The complexes fac-[W(CO)3(η2-dppf)(η1-dppm)] 4f, fac-[W(CO)3(η2-dppm)(η1-dppf)] 5f, fac-[W(CO)3(η2-dppf)-(η1-dppe)] 6f, fac-[W(CO)3(η2-dppe)(η1-dppf)] 7f, fac-[W(CO)3(η2-dppm)(η1-dppe)] 8f and fac-[W(CO)3(η2-dPpe)-(η1-dppm)] 9f have been prepared by treating fac-[W(CO)3(η2-diphos)(NCMe)] 1-3 [diphos = 1,1′-bis(diphenylphosphino)ferrocene (dppf), dppm (Ph2PCH2PPh2) or dppe (Ph2PCH2CH2PPh2)] with the corresponding diphosphines. The initially afforded facial isomers are converted into the meridional forms (4m-9m) in a subsequent, slow rearrangement process through opening of the chelated diphosphine ligand. A five-co-ordinate, square-pyramidal intermediate is presumed. In contrast, acid-assisted facial-meridional isomerization of 4f and 6f is likely via a seven-co-ordinate hydrido species. The new compounds have been characterized by elemental analyses and IR, mass and NMR spectroscopy.

Syntheses and characterization of tricarbonyl tungsten complexes containing 1,1'-bis(diphenylphosphino)ferrocene ligand

Treatment of W(CO)3(NCCH3)3 with 1,1'-bis(diphenylphosphino)ferrocene (dppf) affords W(CO)3(NCCH3)(η2-dppf) (1) in 85percent) yield.Reaction of 1 with I2 produces a seven-coordinated complex W(CO)3(I)2(η2-dppf) (2), which is further oxidized by H2O2 to give W(CO)3(I)2(η2-dppf(=O)) (3) in 80percent yield.Compound 1 reacts with PMe3 forming fac-W(CO)3(η2-dppf)(PMe3) (4) in 90percent yield.However, reaction of 1 with PPh2Cl generates fac-W(CO)3(η2-dppf)(PPh2H) (5) and fac-W(CO)3(η2-dppf)(PPh2OH) (6) after separation of the reaction mixture by TLC.The structures of compounds 1 and 3 have been characterized by X-ray diffraction methods.Keywords: Tungsten