New Half-Sandwich Chromium(III) Complexes Bearing Phenoxy-Phosphine (Oxide) [O,P(= O)] Ligands: Synthesis, Structures, and Catalytic Properties for Ethylene (Co)Polymerization
文献类型:期刊论文
作者 | Tao P ; Mu HL ; Liu JY ; Li YS |
刊名 | organometallics
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出版日期 | 2013 |
卷号 | 32期号:17页码:4805-4812 |
关键词 | OLEFIN POLYMERIZATION CATALYSTS SUBSTITUTED CYCLOPENTADIENYLCHROMIUM(III) COMPLEXES MOLECULAR-WEIGHT POLYETHYLENE TITANIUM COMPLEXES TRIDENTATE LIGANDS SOFT DONORS OLIGOMERIZATION VANADIUM(III) BEHAVIOR COPOLYMERIZATION |
ISSN号 | 0276-7333 |
通讯作者 | liu jy |
中文摘要 | a series of novel half-sandwich-type chromium complexes bearing phenoxy-phosphine [o,p] ligands (3a-3f) or phenoxy-phosphine oxide [o,p = o] ligands (4b-4e) were synthesized in high yields from cpcrcl2(thf) with corresponding ligands in thf. x-ray structure analyses for 3b, 3c, 3e, and 4c revealed that these complexes adopt a three-legged piano stool geometry. when activated by modified methylaluminoxane, complexes 3a-3f exhibited moderate to high activities toward ethylene polymerization, giving high molecular weight polymers with unimodal molecular weight distributions. excitingly, complex 3c could efficiently promote ethylene/nbe copolymerization, therefore, high molecular weight copolymers with high nbe content could easily be obtained under optimized conditions. the [o,p = o] complexes showed higher catalytic activities than [o,p] analogues but produced much lower molecular weight polymers. the difference in polymerization behavior might be caused by the change of both the steric bulk and the electronic effect around the metal center. |
收录类别 | SCI收录期刊论文 |
语种 | 英语 |
WOS记录号 | WOS:000330144900013 |
公开日期 | 2014-04-15 |
源URL | [http://ir.ciac.jl.cn/handle/322003/49621] ![]() |
专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
推荐引用方式 GB/T 7714 | Tao P,Mu HL,Liu JY,et al. New Half-Sandwich Chromium(III) Complexes Bearing Phenoxy-Phosphine (Oxide) [O,P(= O)] Ligands: Synthesis, Structures, and Catalytic Properties for Ethylene (Co)Polymerization[J]. organometallics,2013,32(17):4805-4812. |
APA | Tao P,Mu HL,Liu JY,&Li YS.(2013).New Half-Sandwich Chromium(III) Complexes Bearing Phenoxy-Phosphine (Oxide) [O,P(= O)] Ligands: Synthesis, Structures, and Catalytic Properties for Ethylene (Co)Polymerization.organometallics,32(17),4805-4812. |
MLA | Tao P,et al."New Half-Sandwich Chromium(III) Complexes Bearing Phenoxy-Phosphine (Oxide) [O,P(= O)] Ligands: Synthesis, Structures, and Catalytic Properties for Ethylene (Co)Polymerization".organometallics 32.17(2013):4805-4812. |
入库方式: OAI收割
来源:长春应用化学研究所
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