Synthesis and characterization of phosphine-(thio)phenolate-based half-zirconocenes and their application in ethylene (co-)polymerization

	Synthesis and characterization of phosphine-(thio)phenolate-based half-zirconocenes and their application in ethylene (co-)polymerization
	Tang, Xiao-Yan ; Long, Ying-Yun ; Wang, Yong-Xia ; Liu,Jing-Yu ; Li,Yue-Sheng
刊名	dalton transactions
	2014
卷号	43 期号:1 页码:222-230
关键词	OLEFIN POLYMERIZATION CATALYSIS EFFICIENT ETHYLENE/NORBORNENE COPOLYMERIZATION MONOMER SEQUENCE DISTRIBUTIONS FOCK-SLATER CALCULATIONS HYDROXYLAMINATO COMPLEXES METALLOCENE CATALYSTS TITANOCENE COMPLEXES ZIRCONIUM COMPLEXES TITANIUM COMPLEXES CHELATING LIGANDS
通讯作者	liu,jy
英文摘要	a series of novel half-zirconocenes containing phosphine-(thio) phenolate chelating ligands of the type cp'zr(thf)cl-2[x-2-r-1-4-r-2-6-(pph2)c6h2] (cp' = c5me5, 2a: x = o, r-1 = ph, r-2 = h; 2b: x = o, r-1 = bu-t, r-2 = h; 2c: x = o, r-1 = r-2 = bu-t; 2d: x = o, r-1 = sime3, r-2 = h; 2e: x = s, r-1 = sime3, r-2 = h; cp' = c5h5, 3b: x = o, r-1 = bu-t, r-2 = h; 3c: x = o, r-1 = r-2 = bu-t; 3d: x = o, r-1 = sime3, r-2 = h; 3e: x = s, r-1 = sime3, r-2 = h) have been synthesized in high yields (74-85%). these complexes were identified by h-1, c-13 and p-31 nmr as well as elemental analyses. structural analysis for 2a-b and 2d revealed that these complexes adopt six-coordinate, distorted octahedral geometry around the zirconium center. these novel half-zirconocenes possessed high catalytic performance for ethylene polymerization at high temperature in the presence of mmao. the phosphine-phenolate-based cp* complexes produced high molecular weight polymers (m-w > 400 000), while the cp analogues displayed much higher activities at high temperature. complex 3c with mmao showed a maximum ethylene polymerization activity of 17 580 kg mol(zr)(-1) h(-1) at 75 degrees c. in addition, the cp based complexes 3b-e could promote ethylene and 1-hexene copolymerization with high activities.
收录类别	SCI
语种	英语
公开日期	2015-10-27
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/57186]
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	Tang, Xiao-Yan,Long, Ying-Yun,Wang, Yong-Xia,et al. Synthesis and characterization of phosphine-(thio)phenolate-based half-zirconocenes and their application in ethylene (co-)polymerization[J]. dalton transactions,2014,43(1):222-230.
APA	Tang, Xiao-Yan,Long, Ying-Yun,Wang, Yong-Xia,Liu,Jing-Yu,&Li,Yue-Sheng.(2014).Synthesis and characterization of phosphine-(thio)phenolate-based half-zirconocenes and their application in ethylene (co-)polymerization.dalton transactions,43(1),222-230.
MLA	Tang, Xiao-Yan,et al."Synthesis and characterization of phosphine-(thio)phenolate-based half-zirconocenes and their application in ethylene (co-)polymerization".dalton transactions 43.1(2014):222-230.