Synthesis and butadiene polymerization behaviors of cationic cobalt-based catalyst
نویسندگان
چکیده
منابع مشابه
Iminopyridine-Based Cobalt(II) and Nickel(II) Complexes: Synthesis, Characterization, and Their Catalytic Behaviors for 1,3-Butadiene Polymerization
A series of iminopyridine ligated Co(II) (1a–7a) and Ni(II) (1b–7b) complexes were synthesized. The structures of complexes 3a, 4a, 5a, 7a, 5b, and 6b were determined by X-ray crystallographic analyses. Complex 3a formed a chloro-bridged dimer, whereas 4a, 5a, and 7a, having a substituent (4a, 5a: CH3; 7a: Br) at the 6-position of pyridine, producing the solid structures with a single ligand co...
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Synthesis of bis(N-arylcarboximidoylchloride)pyridine cobalt(II) complexes and their catalytic behavior for 1,3-butadiene polymerization.
A new family of bis(N-arylcarboximidoylchloride)pyridine cobalt(II) complexes with the general formula [2,6-(ArN=CCl)2C5H3N]CoCl2 (Ar = 2,4,6-Me3C6H2, 4a; 2,6-(i)Pr2C6H3, 4b; 2,6-Me2C6H3, 4c; C6H5, 4d; 4-Cl-2,6-Me2C6H2, 4e) and a typical Brookhart-Gibson-type reference complex [2,6-(2,4,6-Me3C6H2N=CMe)2C5H3N]CoCl2 (5a) were synthesized and characterized. Determined by X-ray crystallographic ana...
متن کاملCatalytic Polymerization of Butadiene in Aqueous Systems with Cationic Nickel(II) Complexes
The cationic nickel(II) complexes [(η-C3H5)Ni(SbPh3)2][B(3,5-(CF3)2C6H3)4] (2) and [(η3C3H5)Ni(SbPh3)2][Al(OC(CF3)3)4] (3) were prepared and their polymerization activities in aqueous systems were compared with [(η-C3H5)Ni(η-BHT)][B(3,5-(CF3)2C6H3)4] (1) (BHT ) 3,5-di-tert-butyl-4-hydroxytoluene). Cispolybutadiene is formed in nonaqueous solution polymerization. The presence of water decreases ...
متن کاملSurface Modified Cobalt Ferrite Nanoparticles with Cationic Surfactant: Synthesis, Multicomponent Dye Removal Modeling and Selectivity Analysis
Herein, magnetic cobalt ferrite nanoparticles (CFNPs) was synthesized and its surface was modified by cationic surfactant (cetyltrimethyl ammonium bromide: CTAB) and its potential to selective removal of dye from multicomponent (ternary) system was investigated. Direct red 31 (DR31), Direct green 6 (DG6) and Direct red 23 (DR23) were used as a model dyes. The characteristics of the synthesi...
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ژورنال
عنوان ژورنال: Journal of Saudi Chemical Society
سال: 2017
ISSN: 1319-6103
DOI: 10.1016/j.jscs.2013.12.006