Five new hetero-bimetallic metallocene complexes were synthesized by the reaction of RCpTiCl 3 and a Si-bridged zirconocene complex in refluxing toluene. They were all well characterized. These complexes activated with methylaluminoxane (MAO) are highly active catalysts for the polymerization of eth
Bimetallic nickel complexes of macrocyclic tetraiminodiphenols and their ethylene polymerization
β Scribed by Sung Jae Na; Dae June Joe; Sujith S; Won-Sik Han; Sang Ook Kang; Bun Yeoul Lee
- Book ID
- 108188147
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 279 KB
- Volume
- 691
- Category
- Article
- ISSN
- 0022-328X
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π SIMILAR VOLUMES
Two nickel complexes [Ni(NH 2 CH 2 CH 2 CH 2 NH 2 ) 3 ]Cl 2 (1) and[Ni(C 6 H 4 N 2 H 4 ) 2 Cl 2 ] (2) have been obtained and characterized by IR and single crystal X-ray diffraction analysis. In complex 1, the nickel atom was in a chiral pseudo-octahedral [NiN 6 ] geometry environment, which was coo
2-Diphenylphosphanyl-and 2-alkylphenylphosphanyl-4-hindered or retarded. The reactivity of 1d remains high towards nickel salts in polar solvents, but in contrast to 1a-c, methylphenols 1 or their silyl ethers 2 and equimolar amounts of nickelocene react in benzene preferably to give yielding 4, a s