作者:Carolina Valdebenito、María Teresa Garland、Raul Quijada、Rene Rojas
DOI:10.1016/j.jorganchem.2008.11.066
日期:2009.3
6-dimethyl-phenylimino)ethyl)]-acetamidine}] (4). The structures of the ligands and nickel complexes have been determined by single crystal X-ray diffraction. The addition of MAO to these complexes generates catalytically active species for the homopolymerization of ethylene. The polymer products are high molecular weight (80–169 K). At temperatures of up to 60 °C both catalysts are a single site giving
在三乙胺的存在下,(2,6-二异丙基-苯基)-乙二酰氯或(2,6-二甲基-苯基)-乙二酰氯与2,6-二甲基苯胺的反应生成异构体N'-(2, 6-二异丙基-苯基)-N- [1-(2,6-二异丙基-苯基亚氨基)-乙基] -N-(2,6-二甲基)-乙am(1a)和N-(2,6-二异丙基-苯基)-N- [1-(2,6-二异丙基-苯基亚氨基)-乙基] -N'-(2,6-二甲基)-乙am(1b)和N,N'-双-(2,6-二甲基) -苯基)-N- [1-(1-(2,6-二甲基-苯基亚氨基)乙基)]-乙am(2)。加入异构体(的1A + 1B)镍(II)二溴化物2-甲氧基乙基醚,(NIBR 2〔O(C 2 H ^ 4 OME)2])产生新的镍络合物[NiBr 2 N'-(2,6-二异丙基-苯基)-N- [1-(2,6-二异丙基-苯基亚氨基)-乙基] -N-(2, [6-二甲基)-乙am}}(3a)和[NiBr