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Synthesis, structure, and olefin polymerization catalysis of a novel vanadium(III) 1,1 '-bi-2-naphtholate complex

机译:新型钒(III)1,1'-联-2-萘甲酸络合物的合成,结构和烯烃聚合催化

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The reaction of VCl3 with (S)-(-)-Na-2 (binol) (binol = 1,1'-bi-2-naphtholate) gave a new vanadium(III) complex, [Na(OEt2)](3)[V(binol)(3)] (Fig. 1). The X-ray crystallographic structure of this complex (Complex 1) in Figure 1 reveals its propeller-like structure, which is similar to those of the reported rare earth analogues. The complex showed moderate catalytic activities for ethylene polymerization upon activation with modified methylaluminoxane (MMAO) and with diethyl-aluminum chloride (DEAC). The Complex 1/DEAC system also catalyzed the polymerization of propylene to give atactic polypropylene with low activity. (C) 2003 Wiley Periodicals, Inc. [References: 14]
机译:VCl3与(S)-(-)-Na-2(酚)(酚= 1,1'-联-2-萘甲酸)的反应生成新的钒(III)络合物[Na(OEt2)](3 )[V(binol)(3)](图1)。图1中该复合物(复合物1)的X射线晶体结构揭示了其螺旋桨状结构,与报道的稀土类似物相似。在用改性甲基铝氧烷(MMAO)和二乙基氯化铝(DEAC)活化后,该配合物对乙烯聚合显示适度的催化活性。配合物1 / DEAC体系还催化丙烯的聚合,得到低活性的无规立构聚丙烯。 (C)2003 Wiley Periodicals,Inc. [参考:14]

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