... The volume of the reaction mixture was then reduced to 300 mL and the mixture added to 1000 mL of cold petroleum ether. ... Organometallics, Vol. ... In cm-' [*2 cm-' except for the (olefin),NiL, complexes which are *5 cm-'1. shoulder on adding 10 M acn to 0.25 M Ni[P(Opt~lyl)~],. ...