The product of halide abstraction from [M'X2(1,1'-bis(phosphino)metallocene)] (M' = Pd or Pt) complexes is very dependent on the nature of the 1,1'-bis(phosphino)metallocene ligand (M(C5H4PR2)2 where M = Fe, Ru or Os). With most R groups, the halide is removed and the product undergoes a dimerization to form a bridged-halide dication, [(M(C5H-4PR2)2M'(�-X))2]+2. When R = tBu the product of halide abstraction is too bulky to form the bridged-halide dication. Instead, a monocation with a Fe-Pd interaction is formed. This compound undergoes a temperature induced solid state isomerization to a three-coordinate species in which there is not a Fe-Pd interaction. Finally, with a weakly donating 1,1'-bis(phosphino)metallocene ligand such as when R = 3,5-C6H3(CF3)2, these compounds do not undergo a halide abstraction reaction. The products of these reactions were investigated spectroscopically, crystallographically and electrochemicially.

Halide abstraction from [M'X<sub>2</sub>(1,1'-bis(phosphino)metallocene)] complexes

247th National Meeting (2014)

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Halide abstraction from [M'X2(1,1'-bis(phosphino)metallocene)] complexes

Halide abstraction from [M'X₂(1,1'-bis(phosphino)metallocene)] complexes