Synonyms: Nickel,[N,N'-bis(1H-pyrrol-2-ylmethylene)-1,3-propanediaminato(2-)-N,N',N'',N''']-,(SP-4-2)-; Nickel,[[2,2'-[trimethylenebis(nitrilomethylidyne)]dipyrrolato](2-)]- (8CI);1,3-Propanediamine, N,N'-bis(1H-pyrrol-2-ylmethylene)-, nickel complex