of a Vaska-type complex of P ..

We discovered that the F- binding to the boryl moiety leads to an enhancement of the electron donating properties as a phosphine ligand by monitoring the v(CO) frequency of the corresponding Vaska-type rhodium complex.

of Vaska-Type Iridium Complexes for ..

Triphenyl Methanol Synthesis; Synthesis Of Bonds; Preparation Of a Vaska-Type Rhodium Complex;
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Rhodium(I) Vaska-type phosphite complexes as model ..

Attempts to isomerise the tt bonded tetrafluoro -ethylene in complexes of the type PtL2(C2F.;) (L= PPh.;AsPh.;) to yield trifluorovinylcomplexes containing a platinum-fluorine bond, in an analagous reaction to that observed for the fluoro -chloro/bromo olefins* were unsuccessful;but led to the invesitigation of the chemistry of carbonatobis (triphenylarsine) platinum(II) as a clean easy precursor of bis(triphenylarsine) platinum(0) for the synthesis of olefin and acetylene complexes of the type Pt (AsPh.;)2.;f; (Cf"olefin r acetylene).

the corresponding Vaska-type rhodium complex

The fluoro derivative of Vaska's complex, and its rhodium analogue,have been synthesised by simple halide exchange using silver fluoride; as a consequence of these reactions we have found a simple high yield route to hitherto unknown mixed donor ligand complexes of the type RhX(C0)LL' CX= Cl,Br; L= PPh3,AsPh3; L*= PPh3, AsPh3, SbPh3, P(0Ph)3 ) by halogen bridge cleavage of the dimeric precursors.;RhX(C0)Lj The inability to synthesise the corresponding fluorinebridged complex precluded investigation of similar reactions to obtain fluoro complexes of that type.

Rhodium(I) Vaska-type phosphite complexes as model homogeneous catalysts
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Reversible activation of covalent molecules ..

The stereoelectronicand electronic features of the ligands were probed by use of seleniumoxidation products and Vaska’s rhodium complexes, respectively.

Homogeneous Hydrogenation Catalysts in Organic Synthesis

For examples of the packing disorder observed in Vaska-type complexes of Rh, Ir, Pd and Pt, see: Chen et al. (1991), Kuwabara & Bau (1994), Otto et al. (2000) and Otto (2001), respectively. For background to our investigation of the steric and electronic effects of group 15 ligands, see: Roodt et al. (2003); Muller et al. (2006, 2008). For the related synthesis of the trans-[IrCl(CO)(PPh3)2] complex, see: Collman et al. (1990). For background to cone angles, see Tolman (1977); Otto et al. (2000); Otto (2001). For background to the Cambridge Structural Database, see: Allen (2002).

These Vaska type complexes are ..