Phosphine complexes of platinum

Tertiary phosphine complexes of platinum and palladium M(PR3)2X2 are important [95]. The cis- and trans- somers are readily obtained for platinum,... 

The most important of the tertiary phosphine complexes of platinum(IV) are Pt(QR3)2X4, generally prepared by halogen oxidation [174] of cis- or trans-Pt(QR3)2X2 (Q = P, As, R = alkyl Q = Sb, R = Me), since direct reaction of the platinum(IV) halides with the ligands leads to reduction. Once made, the platinum(IV) compounds are stable to reduction ... 

Hoye, P.A.T., Pringle, P.G., Smith, M.B., and Worboys, K., Hydrophosphination of formaldehyde catalyzed by tris(hydroxymethyl)phosphine complexes of platinum, /. Chem. Soc., Dalton Trans., 269, 1993. 

Nucleophihc attack of methoxide ion on olefinic and acetylenic groups of suitable unsaturated phosphine complexes of platinum(II) takes place to give cyclic, a-bonded complexes. This reaction appears to occur whether or not the unsaturated group is coordinated to the metal (22). But-3-enyl diphenylphosphine forms a chelate complex with platinum(II) chloride which on treatment with sodium hydrogen car-... 

It is possible to distinguish between phosphine complexes of platinum and rhodium by phosphorus-31 NMR spectroscopy, a technique not available to the early coordination chemists. Given that phosphorus-31 (100% abundant), platinum-195 (33% abundant), and rhodium-103 (100% abundant) all have nuclear spin quantum numbers of 1/2, sketch 31P NMR spectra of the following complexes (assume all protons are decoupled from the phosphorus nuclei) ... 

A wide range of alkyl- and aryl-hydroxo-bis(tertiary phosphine) complexes of platinum(II) has been prepared now (17, 18, 19, 20, 21), generally by the route shown in Equation 4 or some variant of it... 

The coordinative reactivity of phosphine complexes of platinum(O), palladium(O) and nickel(O) Reversible activation of covalent molecules by transition metal complexes. The role of the covalent molecule... 

Phosphine complexes of platinum, palladium, and nickel also react in a similar manner ... 

Asymmetric hydrosilylation of prochiral olefins, e.g. 1,1-disubstituted olefins, catalyzed by chiral phosphine complexes of platinum(II) [21], nickel(II) [22], and palladium(II) [23] has been reported. When a platinum complex of the type [L PtCl2]2, where L stands for (/ )-benzylmethylphenylphosphine (BMPP), was used as catalyst, methyldichlorosilane, but not trichlorosilane, reacted satisfactorily- with a-methylstyrene, 2,3-dimethyl-l-butene, and 2-methyl-l-butene to give the corresponding optically active addition products, RMeC HCH2SiMeCl2, R = Ph, /-Pr,... 

Among the new bidentate phosphine complexes of platinum reported... 

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