Cyclo-octenyl complexes

The cyclo-octenyl complex, 1.6a, which is prepared from bis-cyclo-octa 1, S-diene nickel and acetylacetone has a rather similar structure [726] with the ligand forming both a a-, and a n-bond to the metaLf... 

It is Hkely that the diene also remains coordinated during the hydrosilylation reactions of phenylacetylene with HSiEts, catalyzed by [Ir(diene)(NCMe)(PR3)]BF4 complexes [PR3 = P Pr3, PMe3 diene = 1,5-cyclo-octadiene, tetraflorobenzobarre-lene (TFB)]. However, detailed studies on the [Ir(COD)(NCMe)(PMe3)]BF4 complex show that cyclo-octadiene carmot be considered, in this case, as an ideal innocent Hgand because it transform into complexes containing cyclo-octadiene, cyclo-octadienyl or cyclo-octenyl Hgands in a variety of coordination modes, due to an... 

Organocobalt 7r-Complexes.—In molecules of w-cyclo-octenyl- r-cyclo-octa-1,5-dienecobalt (43) the metal atom is sandwiched between the two organic ligands so that the midpoints of the C-C double bonds, the cobalt atom,... 

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