252557-68-9Relevant academic research and scientific papers
Phosphinidene complexes of scandium: Powerful PAr Group-transfer vehicles to organic and inorganic substrates
Wicker, Benjamin F.,Scott, Jennifer,Andino, Jose G.,Gao, Xinfeng,Park, Hyunsoo,Pink, Maren,Mindlola, Daniel J.
, p. 3691 - 3693 (2010/05/15)
"Chemical equation presented" The first phosphinidene complexes of scandium are reported in this contribution. When complex (PNP)Sc(CH3)Br (1) is treated with 1 equiv of LiPH[Trip] (Trip = 2,4,6-iPr3C6H2), the dinuclear scandium phosphinidene complex [(PNP)Sc(μ2-P[Trip])]2 (2) is obtained. However, treating 1 with a bulkier primary phosphide produces the mononuclear scandium ate complex [(PNP)Sc(μ2-P[DMP])(μ2-Br)Li] (3) (DMP = 2,6-Mes2C6H3). The Li cation in 3 can be partially encapsulated with DME to furnish a phosphinidene salt derivative, (PNP)Sc(μ2-P[DMP]) (μ2-Br)Li(DME)] (4). We also demonstrate that complex 3 can readily deliver the phosphinidene ligand to organic substrates such as OCPh2 and Cl2PMes* as well as inorganic fragments such as Cp2ZrCl2, Cp*2TiCl2, and Cp2TiCl2 in the presence of P(CH3)3. Complexes 2-4 have been fully characterized, including single crystal X-ray diffraction and DFT studies.
Triphosphane formation from the terminal zirconium phosphinidene complex [Cp2Zr=PDmp(PMe3)] (Dmp=2,6-Mes2C6H3) and crystal structure of DmpP(PPh2)2
Urnezius, Eugenijus,Lam, Kin-Chung,Rheingold, Arnold L.,Protasiewicz, John D.
, p. 193 - 197 (2007/10/03)
The new terminal phosphinidene complex [Cp2Zr=PDmp(PMe3)] (Dmp=2,6-Mes2C6H3; 1) was prepared in 81% yield by the reaction of [Li(Et2O)][P(H)Dmp] with [Cp2Zr(Me)Cl] in the presence of excess PMe3. Compound 1 reacts with Ph2PCl to produce selectively the sterically congested triphosphane DmpP(PPh2)2 (2) and [Cp2ZrCl2] in high yields. The structure of 2 obtained by X-ray diffraction analysis of a single crystal reveals phosphorus-phosphorus bond lengths of 2.251(2) and 2.234(2) ? and a PPP bond angle of 105.46(6)°.
