of Vaska-Type Iridium Complexes for ..
Photo provided by Pexels
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.
Photo provided by Flickr