Post-metallocenes: Catalytic perfomance of new bis(salicylaldiminato) zirconium complexes for ethylene polymerization

Chemistry Letters

Volumn , Issue 5, 2000, Pages 554-555

  Matsui, Shigekazu ^a   Mitani, Makoto ^a   Saito, Junji ^a   Matsukawa, Naoto ^a   Tanaka, Hidetsugu ^a   Nakano, Takashi ^a   Fujita, Terunori ^a  

^a MITSUI CHEMICALS INC   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0034354181     PISSN: 03667022     EISSN: None     Source Type: Journal    
DOI: 10.1246/cl.2000.554     Document Type: Article

References (19)

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10. 4 with 2 equiv lithium salt of the ligand thus obtained furnished a corresponding zirconium complex in around 70% yield.
11. General polymerization procedure: Flow of ethylene gas (100 L/h) was charged into toluene (250mL). To this solution, a solution of a complex and MAO (produced by Albemarle) was added at 25 °C; see Ref. 4.
12. +).
13. The molecular weight distribution (Mw/Mn) for complexes 1-3 were as follows; complex 1; 2.06, complex 2; 2.13, complex 3; 2.61.
14. nPr as a model of a polymer chain, and the single ζ STO basis set on the other atoms to calculate the optimized geometries. For energy calculations, the triple ζ STO basis set on the Zr and the double ζ plus polarization STO basis set on the other atoms are used and the quasi-relalivistic correction is also added.
15. nPr as a model of a polymer chain, and the single ζ STO basis set on the other atoms to calculate the optimized geometries. For energy calculations, the triple ζ STO basis set on the Zr and the double ζ plus polarization STO basis set on the other atoms are used and the quasi-relalivistic correction is also added.
16. The molecular weight distribution (Mw/Mn) for complexes 4-7 were as follows; complex 4; 2.00, complex 5; 2.31, complex 6; 2.48, complex 7; 7.20.
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