55137-81-0Relevant academic research and scientific papers
Bis(arylimino)pyridine iron(III) complexes as catalyst precursors for the oligomerization and polymerization of ethylene
Goerl, Christian,Englmann, Tanja,Alt, Helmut G.
experimental part, p. 25 - 35 (2012/01/03)
A series of 26 bis(arylimino)pyridine iron(III) complexes containing either electron withdrawing or electron donating substituents in their ligand frameworks was synthesized and characterized. After activation with methylaluminoxane (MAO), these catalysts
Precursor Catenand Complexes: Synthesis, Structure, and Electrochemistry of Bis(2,6-di-iminopyridyl) Complexes of Nickel(II). The Single-crystal X-Ray Structure of 42>2
Blake, Alexander J.,Lavery, Aidan J.,Hyde, Timothy I.,Schroeder, Martin
, p. 965 - 970 (2007/10/02)
Reaction of Ni(BF4)2*6H2O with 2 equivalents of the tridentate 2,6-di-iminopyridyl ligands (L) in EtOH-CH2Cl2 affords the octahedral complexes 2>2.The complex 42>2 ( R=CH2CH2CH2Ph) crystallises in the triclinic space group P1, with a=11.640(4), b=12.8846(27), c=18.906(6) Angstroem, α=90.270(22), β=95.226(28), γ=112.098(24) deg, and Z=2.The single-crystal X-ray structure shows a distorted octahedral geometry around nickel(II) with four imine N-donors occupying equatorial sites and two shorter axial bonds to pyridyl N-donors .The four propylphenyl groups of L extend past the inner co-ordination sphere of the metal ion into positions which could potentially be linked together to form octahedral catenand species.Cyclic voltammetry of 2 (R=CH2Ph or CH2CH2CH2Ph) in MeCN at platinum electrodes shows for each complex two reversible one-electron reductions at (1)E1/2=-1.56 and -1.53 V and (2)E1/2=-1.89 and -1.87 V respectively, and one-electron oxidation process at E1/2= +1.22 and +1.12 V vs. ferrocene-ferrocenium respectively.The quantitative electrogeneration of the corresponding mono-reduced and -oxidised species has been accomplished and assigned by e.s.r. spectroscopy to the formation of nickel-(I) and -(III) complexes respectively.
