NIEDERKOORDINIERTE PHOSPHORVERBINDUNGEN XXXXIII. METHYLENPHOSPHANE UND PHOSPHINOMETHYLENPHOSPHANE ALS η2-LIGANDEN IN NICKEL(0)-KOMPLEXEN

Article abstract of DOI:10.1016/0022-328X(85)80393-4

The complex (η²-ClP=CTms₂)₂NiCO (II) has been prepared and its structure was determinated by X-ray analysis.With Ni(CO)4 the 1,2-diphosphapropenes (IVa,b) form the η¹ complexes (Va,b), which could be identified by NMR spectroscopy.At room temperature Va,b dimerize to the novel complexes VIa,b, in which the phosphine atom of IVa,b acts as a η¹ and the P=C bond as a η² ligand towards the Ni atom.The structure of VIa was also determinated by X-ray analysis.