η6-arene complexes of Ni(II), efficient catalysts for 1,3-butadiene and styrene polymerization

A simple procedure for the preparation of cationic arene complexes of Ni(II) of composition [Ni(η6-ArX)(η3-C3H5)] +[BAr′4]- (X = OH, H) is reported. These compounds are shown to behave as highly active catalysts for the polymerization of 1,3-butadiene and styrene.Peer Reviewe