Formation of a butadienenickel-based zwitterionic single-component catalyst for ethylene polymerization: an alternative activation pathway for homogeneous Ziegler-Natta catalysts of late transition metals
Angew Chem Int Ed Engl. 2002 Jul 15;41(14):2543-6.
doi: 10.1002/1521-3773(20020715)41:14<2543::AID-ANIE2543>3.0.CO;2-W.