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Novel iron tweezers complexes for hydrogenation and polymerization of olefins

Mafua, Roger ; Jenny, Titus A. (Dir.)

Thèse de doctorat : Université de Fribourg, 2006 ; no. 1503.

The use of organometallic complexes as catalysts became a very significant topic in the field of material chemistry. However, despite of this development, only few of them contain iron(II), except the tridentate complex diimine pyridine developed by Gibson and Brookhart and employed in the olefin polymerization. Unfortunately, this model suffers by its lack of tolerance towards the minor changes...

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Crystal structures of trans-dichloridotetrakis[1-(2,6-diisopropylphenyl)-1H-imidazole-ΚN³]iron(II), trans-dibromidotetrakis[1-(2,6-diisopropylphenyl)-1H-imidazole-ΚN³]iron(II) and trans-dibromidotetrakis[1-(2,6-diisopropylphenyl)-1H-imidazole-ΚN³]iron(II) diethyl ether disolvate

Mafua, Roger ; Jenny, Titus ; Labat, Gael ; Neels, Antonia ; Stoeckli-Evans, Helen

In: Acta Crystallographica Section E Structure Reports Online, 2014, vol. 70, no. 8, p. 72–76

The title compounds, [FeCl₂(C₁₅H₂₀N₂)₄], (I), [FeBr₂(C₁₅H₂₀N₂)₄], (II), and [FeBr₂(C₁₅H₂₀N₂)₄]·2C₄H₁₀O, (IIb), respectively, all have triclinic symmetry, with (I) and (II) being isotypic. The FeII atoms in each of the structures are located on an inversion center. They have octahedral FeX₂N₄ (X = Cl and Br,...

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