1-(2,6-dibenzhydryl-4-fluorophenylimino)-2-aryliminoacenaphthylylnickel halides highly polymerizing ethylene for the polyethylenes with high branches and molecular weights

1-(2,6-dibenzhydryl-4-fluorophenylimino)-2-aryliminoacenaphthylylnickel halides highly polymerizing ethylene for the polyethylenes with high branches and molecular weights