Halogeno(acylphenolato)cobalt(III)-Verbindungen mit Trimethylphosphan-Liganden/ Halogeno(acylphenolato)cobalt(III) Compounds Containing Trimethylphosphane Ligands

Abstract

Abstract Complexes mer-CoH(CO-CR=CR′-O)(PMe3)3 react with haloalkanes RX (X = Br, I) or with acids HX (X = Cl, Br) under elimination of dihydrogen. In both reactions a change of configu­ration at the metal is brought about by directional steering through the hard/soft (acyl)enolato chelate ligands to form octahedral complexes mer-CoX(CO-CR=CR′-C))(PMe3)3 or sterically crowded ionic compounds [Co(CO-CR=CR′-O)(PMe3)4(3)]+ X-(X = ClO4) without opening of the (acyl)enolato chelate ring.