94791-45-4Relevant academic research and scientific papers
Bis(dialkylphosphino)methane Complexes of Palladium(II) and the Molecular Structure of iPCH2PPri2)(μ-Pri2PCH2PHPri)>.2CHCl3 containing an Unusual Phosphidophosphine Bridging Ligand
Manojlovic-Muir, Ljubica,Lloyd, Brian R.,Puddephatt, Richard J.
, p. 201 - 206 (1987)
The mononuclear chelate complexes (X = CF3CO2 or Cl; R = Me, Et, or Pri) have been prepared and characterized spectroscopically.Reaction of with Pri2PCH2PHPri gave a novel binuclear complex, iPCH2PPri2)(μ-Pri2PCH2PHPri)>, with the phosphidophosphine ligand in an unusual bridging mode.This complex was characterized by 1H and 31P n.m.r. spectroscopy and by X-ray crystal-structure analysis of its trichloromethane solvate , a = 8.744(2), b = 11.483(1), c = 20.108(4) Angstroem, α = 103.49(1), β = 97.15(2), γ = 91.11(2) deg, Z = 2, R = 0.035 for 5 918 symmetry-independent reflections with I >/= 3?(I)>.
Mechanism of formation of the cluster complex [Pd3(μ3-CO)(μ-Ph2PCH2PPh 2)3]2+ and its halide adducts
Lloyd, Brian R.,Manojlovic-Muir, Ljubica,Muir, Kenneth W.,Puddephatt, Richard J.
, p. 1231 - 1237 (2008/10/08)
The cluster complex [Pd3(μ3-CO)(μ-dppm)3] [PF6]2, 1, dppm = Ph2PCH2PPh2, is prepared in 90% yield by reaction of Pd(OAc)2, dppm, and CO in acetone/CF3
Synthesis and spectral characterization of dinuclear palladium(I) phenoxides and the crystal structure of Pd2(dppm)2(OCOCF3)2
Krafft, Terry E.,Hejna, Carolyn I.,Smith, Joanne S.
, p. 2682 - 2688 (2008/10/08)
Dinuclear palladium(I) phenoxide compounds Pd2(dppm)2(OAr)2 (dppm = bis(diphenylphosphino)methane) and Pd2(dmpm)2-(OAr)2 (dmpm = bis(dimethylphosphino)methane) have been synthesized from the corresponding dichloro compounds by metathesis with sodium or potassium aryloxides. The trifluoroacetate complex Pd2(dppm)2(OCOCF3)2 also undergoes ligand exchange to yield palladium(I) bisphenoxides. The reactions were followed by 31P NMR spectroscopy, which clearly shows the intermediate chloro-aryloxide compounds Pd2(R2PCH2PR2)2(OAr)Cl (R = Ph, Me). The bisphenoxide complexes were characterized by 1H, 13C, and 31P NMR spectroscopy. Evidence is presented for hindered rotation about the palladium-oxygen bond in Pd2-(dmpm)2(OC6H3-2,6-Me) 2. Reaction of the dinuclear compounds Pd2(R2PCH2PR2)2X 2 (R = Ph, Me) with carbon monoxide resulted in insertion of CO into the metal-metal bond. An X-ray crystal structure of the trifluoroacetate complex Pd2-(dppm)2(OCOCF3)2 (7) was performed. The complex crystallizes in the monoclinic space group C2/c with a = 15.870 (8) ?, b = 17.212 (8) ?, c = 20.364 (11) ?, β = 102.88 (5)°, V = 5423 (8) ?3, and Z = 4. Refinement with 3276 reflections converged at R = 0.0422 and Rw = 0.0749. The Pd2P4C2 unit is nonplanar with a torsion angle of 44.5° about the metal-metal bond. The carboxylates are monodentate with a cis orientation, giving the molecule overall C2 symmetry. The Pd-Pd bond distance is 2.594 (2) ?, and the Pd-O distance is 2.191 (4) ?.
