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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Cationic borohydrido-neodymium complex: Synthesis, characterization and its application as an efficient pre-catalyst for isoprene polymerisation
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Cationic borohydrido-neodymium complex: Synthesis, characterization and its application as an efficient pre-catalyst for isoprene polymerisation

机译:阳离子氢硼氢化钕络合物:合成,表征及其作为异戊二烯聚合的有效前催化剂的应用

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摘要

The cationic borohydrido lanthanide complex [Nd(BH4)(2)(THF)(5)][B(C6F5)(4)] 1, prepared from the reaction of Nd(BH4)(3)(THF)(3) with [HNMe2Ph][B(C6F5)(4)], is highly active towards isoprene polymerisation upon activation with Al(i-Bu)(3), whereas the in situ prepared ternary catalytic combination Nd(BH4)(3)(THF)(3)/[HNMe2Ph][B(C6F5)(4)]/Al(i-Bu)(3), albeit less active, displays higher cis- selectivity and better control in terms of macromolecular data.
机译:由Nd(BH4)(3)(THF)(3)与Nd(BH4)(3)(THF)(3)反应制得的阳离子硼氢化镧镧系元素络合物[Nd(BH4)(2)(THF)(5)] [B(C6F5)(4)] 1 [HNMe2Ph] [B(C6F5)(4)]在被Al(i-Bu)(3)活化后对异戊二烯聚合反应具有很高的活性,而原位制备的三元催化组合Nd(BH4)(3)(THF) (3)/ [HNMe2Ph] [B(C6F5)(4)] / Al(i-Bu)(3),尽管活性较低,但在大分子数据方面显示出更高的顺式选择性和更好的控制能力。

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