中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Novel nickel(II) and cobalt(II) catalysts based on poly-salen type ligands for the dirnerization of propylene

文献类型:期刊论文

作者Wu, SZ; Lu, SW
刊名journal of molecular catalysis a-chemical
出版日期2003-04-18
卷号197期号:1-2页码:51-59
关键词dimerization of propylene poly-salen type ligand Ni(II) and Co(II) complexes Al co-catalyst phosphine ligand 2 3DMB
英文摘要a series of poly-salen type ni(ii) and co(ii) complexes were prepared, and the catalytic behavior in the dimerization of propylene has been studied in combination with aluminum co-catalysts and phosphine ligands. the effects of various reaction factors, such as the type of phosphine ligand and the p/ni ratio, the type of aluminum co-catalyst and its quantity, particularly the nature of the nickel and cobalt complexes, were also examined. the results indicated that the productivity of the catalytic system was strongly dependent on the steric character of poly-salen ligand in the ni(h) and co(ii) complexes. it was also found that reaction temperature deeply affected the performance of the catalytic system in the presence of phosphine ligand and alkyl aluminum promoter, and higher regioselectivities to 2,3-dimethylbutenes (2,3dmb) in the dimers were observed with incorporation of bulky and basic pcy3 into the nickel and cobalt catalysts. an extremely high activity in the propylene dimerization (tof up to 221,000 h(-1)) was obtained with the 2b system under suitable conditions, which was much higher than that obtained with the corresponding monomeric salen system. however, it seemed difficult to realize recycling of the catalysts owing to the restrict dependence of catalytic activity with its solubility, at least under the adopted conditions. (c) 2002 elsevier science b.v. all rights reserved.
WOS标题词science & technology ; physical sciences
类目[WOS]chemistry, physical
研究领域[WOS]chemistry
关键词[WOS]complexes ; oligomerization ; reduction ; olefins ; carbon ; polymerization ; acetonitrile ; dimerization ; cathodes ; copper
收录类别SCI
语种英语
WOS记录号WOS:000182145800005
公开日期2015-11-10
源URL[http://159.226.238.44/handle/321008/138265]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Res Ctr Catalysis, Dalian Chem Phy Chem Co Ltd, Dalian 116011, Peoples R China
推荐引用方式
GB/T 7714
Wu, SZ,Lu, SW. Novel nickel(II) and cobalt(II) catalysts based on poly-salen type ligands for the dirnerization of propylene[J]. journal of molecular catalysis a-chemical,2003,197(1-2):51-59.
APA Wu, SZ,&Lu, SW.(2003).Novel nickel(II) and cobalt(II) catalysts based on poly-salen type ligands for the dirnerization of propylene.journal of molecular catalysis a-chemical,197(1-2),51-59.
MLA Wu, SZ,et al."Novel nickel(II) and cobalt(II) catalysts based on poly-salen type ligands for the dirnerization of propylene".journal of molecular catalysis a-chemical 197.1-2(2003):51-59.

入库方式: OAI收割

来源:大连化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。