54111-75-0

Basic information

• Product Name: C₃₂H₂₈O₄P₂W
• Synonyms: C₃₂H₂₈O₄P₂W
• CAS NO: 54111-75-0
• Molecular Weight: 722.369
• Mol File: 54111-75-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: C₃₂H₂₈O₄P₂W(CAS DataBase Reference)
• NIST Chemistry Reference: C₃₂H₂₈O₄P₂W(54111-75-0)
• EPA Substance Registry System: C₃₂H₂₈O₄P₂W(54111-75-0)

Safety Data

• Hazardous Substances Data: 54111-75-0(Hazardous Substances Data)

Upstream product

• 15096-68-1 pentacarbonyl(acetonitrile)tungsten 
• 7688-25-7 1,4-di(diphenylphosphino)-butane 
• 14040-11-0 tungsten hexacarbonyl 
• 14040-11-0 tungsten hexacarbonyl 

Relevant articles and documents

Donor properties of diphosphine ligands in tungsten carbonyl complexes: Synchrotron radiation XPS measurements and DFT calculations

Synchrotron radiation XPS measurements of W 4f and P 2p core level binding energies in the series W(CO)4(P-P) (P-P = dppm (1), dppe (2), dppp (3), dppb (4), dmpe (5), F-dppe (6); dppm = bis(diphenylphosphino)methane, dppe = 1,2-bis(diphenylphos

Effect of ring size on NMR parameters: Cyclic bisphosphine complexes of molybdenum, tungsten, and platinum. Bond angle dependence of metal shieldings, metal-phosphorus coupling constants, and the 31P chemical shift anisotropy in the solid state

The 31P chemical shift tensors of bis(phosphine) complexes of the type [M] [Ph2P(CH2)nPPh2] ([M] = (OC)4Mo, (OC)4W, Cl2Pt; n = 1-5) and of fac-(OC)3Mo[PPh(CH2CH2PPh2) 2] were determined by solid-state NMR techniques and correlated with structural features of the compounds. δ(31P), 1JM-P, and δ(M) show a dependence on the ring size in the solution NMR spectra of the four- to six-membered chelates; for larger rings this dependence vanishes. A model for the orientation of the 31P shift tensor principal components within the molecular frame is proposed. Each tensor component displays a different dependence on the ring size; the isotropic shift is dominated by the component perpendicular to the ring plane. Changes in this component are explained in terms of variations of the M-P-C angles. Generally speaking, the behavior of each of the tensor components must be regarded as a complex interplay of all six bond angles at phosphorus. The crystal structure of (OC)4W[Ph2P(CH2)4PPh2] (2d) was determined by X-ray diffraction. Crystals of 2d are monoclinic, space group P21/n, a = 1202.8 (1) pm, b = 1531.8 (1) pm, c = 1654.1 (2) pm, β = 104.72 (1)°, and Z = 4.