Two New Dinuclear Sterically Crowded CuII Complexes as Catalyst Precursors for the Oxidative Coupling of 2,6-Dimethylphenol
نویسندگان
چکیده
منابع مشابه
Engineering coordination assemblies of dinuclear CuII complexes.
Hybrid organic-inorganic coordination assemblies are synthesized using modified aminocarboxylic acid ligands as the structure-directing agents. The synthetic approach results in two novel dinuclear copper(II) complexes, K2[CuII(hnida)]2.2H2O (1) and K4[CuII(chnida)]2.4H2O.4MeOH (2) that assemble in the presence of suitable counterions into a densely packed hexagonal array or an open-framework s...
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Diamido Complexes of Titanium and Zirconium as Catalyst Precursors for Ethylene Polymerization
A series of 8 new complexes of titanium and zirconium with diamido ligands bearing an ethylene and propylene bridge between the two amido groups were synthesized and tested for ethylene polymerization. Titanium complexes bearing an ethylene bridge between the two amido groups showed higher activities than the derivatives with a propylene bridge. In the case of the zirconium complexes, the p...
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Two dinuclear Cu complexes based on a diazecine ligand were characterized by X-ray diffraction, one of which includes the rare Cu–F bond, resulting from dissociation of a BF4 ion. The F ligands actively participate in the crystal structure, behaving as acceptors for hydrogen bonding.
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A series of dissymmetric dinuclear complexes were synthesized, as dual site catalysts in ethylene polymerization, by coupling the allylated a-diimine complexes of the metals Ti, Zr, V, Ni and Pd with the ansa-zirconocene complex [C5H4-SiH(Me)-C5H4]ZrCl2 possessing a hydride silane moiety. The different stages of syntheses included the formation of bis(cyclopentadienide)methyl silane which was u...
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ژورنال
عنوان ژورنال: European Journal of Inorganic Chemistry
سال: 2003
ISSN: 1434-1948,1099-0682
DOI: 10.1002/ejic.200390181