2,6-Diiminopyridine Iron(II) Dialkyl Complexes.
Interaction with Aluminum Alkyls and Ethylene
Polymerization Catalysis

Cámpora, Juan; Naz, A. Marcos; Palma, Pilar; Álvarez, Eleuterio; Reyes, Manuel L.

doi:10.1021/om050645d.s001

om050645d_si_001.pdf (277.86 kB)

2,6-Diiminopyridine Iron(II) Dialkyl Complexes. Interaction with Aluminum Alkyls and Ethylene Polymerization Catalysis

journal contribution

posted on 2005-10-10, 00:00 authored by Juan Cámpora, A. Marcos Naz, Pilar Palma, Eleuterio Álvarez, Manuel L. Reyes

Bis(pyridine)iron dialkyl complexes FeR₂Py₂ (R = CH₂Ph, CH₂CMe₂Ph, and CH₂SiMe₃) react with 2,6-diiminopyridine ligands, affording the corresponding organoiron complexes. The complex Fe(CH₂SiMe₃)₂(C₅H₃N-2,6-(C(N-mesityl)Me)₂, 4a, becomes an active ethylene polymerization catalyst upon treatment with Al or Zn alkyls. A catalytically active 1:1 Fe/Al adduct has been detected in solution by ¹H and UV−vis spectroscopies.