Bis(di-tert-butylphosphino)ethan-Nickel(0)-Komplexe

Ni(cdt) reacts with t Bu 2 PC 2 H 4 P t Bu 2 in pentane at 20 o C to yield brownish crystals of ( t Bu 2 PC 2 H 4 P t Bu 2 )Ni(η 2 -C 12 H 18 ) (1). the molecular structure of 1, as established by X-ray crystallography, exhibits a trigonal-planar coordination geometry of the nickel center with a η 2 -bonded cdt ligand. In the crystal 1 exists as two enantiomers, which are determined by the left- or right-handed screw axis of the cdt ligand.