Phosphine-Thiophenolate Half-Titanocene Chlorides: Synthesis, Structure, and Their Application in Ethylene (Co-)Polymerization
文献类型:期刊论文
作者 | Tang, Xiao-Yan1,2; Liu, Jing-Yu1; Li, Yue-Sheng1 |
刊名 | CATALYSTS
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出版日期 | 2013-03-01 |
卷号 | 3期号:1页码:261-275 |
关键词 | Copolymerization Catalysts Ethylene |
ISSN号 | 2073-4344 |
DOI | 10.3390/catal3010261 |
英文摘要 | A series of novel half-titanocene complexes CpTiCl2[S-2-R-6-(PPh2)C6H3] (Cp = C5H5, 2a, R = H; 2b, R = Ph; 2c, R = SiMe3) have been synthesized by treating CpTiCl3 with the sodium of the ligands, 2-R-6-(PPh2)C6H3SNa, which were prepared by the corresponding ligands and NaH. These complexes have been characterized by H-1, C-13 and P-31 NMR as well as elemental analyses. Structures for 2a-b were further confirmed by X-ray crystallography. Complexes 2a-b adopt five-coordinate, distorted square-pyramid geometry around the titanium center, in which the equatorial positions are occupied by sulfur and phosphorus atoms of the chelating phosphine-thiophenolate and two chlorine atoms, and the cyclopentadienyl ring is coordinated on the axial position. The complexes 2a-c were investigated as the catalysts for ethylene polymerization and copolymerization of ethylene with norbornene in the presence of MMAO or Ph3CB(C6F5)(4)/(Bu3Al)-Bu-i as the cocatalyst. All complexes exhibited low to moderate activities towards homopolymerization of ethylene. However, they displayed moderate to high activities towards copolymerization of ethylene with norbornene. |
语种 | 英语 |
WOS记录号 | WOS:000339585000017 |
出版者 | MDPI AG |
源URL | [http://ir.iccas.ac.cn/handle/121111/46411] ![]() |
专题 | 中国科学院化学研究所 |
通讯作者 | Liu, Jing-Yu |
作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Univ Chinese Acad Sci, Changchun Branch, Changchun 130022, Peoples R China |
推荐引用方式 GB/T 7714 | Tang, Xiao-Yan,Liu, Jing-Yu,Li, Yue-Sheng. Phosphine-Thiophenolate Half-Titanocene Chlorides: Synthesis, Structure, and Their Application in Ethylene (Co-)Polymerization[J]. CATALYSTS,2013,3(1):261-275. |
APA | Tang, Xiao-Yan,Liu, Jing-Yu,&Li, Yue-Sheng.(2013).Phosphine-Thiophenolate Half-Titanocene Chlorides: Synthesis, Structure, and Their Application in Ethylene (Co-)Polymerization.CATALYSTS,3(1),261-275. |
MLA | Tang, Xiao-Yan,et al."Phosphine-Thiophenolate Half-Titanocene Chlorides: Synthesis, Structure, and Their Application in Ethylene (Co-)Polymerization".CATALYSTS 3.1(2013):261-275. |
入库方式: OAI收割
来源:化学研究所
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