Rare earth metal bis(alkyl) complexes bearing amino phosphine ligands: Synthesis and catalytic activity toward ethylene polymerization
文献类型：期刊论文
| 作者 | Li, Shihui; Miao, Wei; Tang, Tao; Cui, Dongmei; Chen, Xuesi; Jing, Xiabin |
| 刊名 | JOURNAL OF ORGANOMETALLIC CHEMISTRY
 |
| 出版日期 | 2007-10-15 |
| 卷号 | 692期号:22页码:4943-4952 |
| 关键词 | Lanthanide Alkyl Complex Ethylene Polymerization Phosphine |
| ISSN号 | 0022-328X |
| DOI | 10.1016/j.jorganchem.2007.07.022 |
| 英文摘要 | Reactions of neutral amino phosphine compounds HL1-3 with rare earth metal tris(alkyl)s, Ln(CH2SiMe3)(3)(THF)(2), afforded a new family of organolanthanide complexes, the molecular structures of which are strongly dependent on the ligand framework. Alkane elimination reactions between 2-(CH3NH)-C6H4P(Ph)(2) (HL1) and Lu(CH2SiMe3)(3)(THF)(2) at room temperature for 3 h generated mono(alkyl) complex (L-1)(2)Lu(CH2SiMe3)(THF) (1). Similarly, treatment of 2-(C6H5CH2NH)-C6H4P(Ph)(2) (HL2) with Lu(CH2SiMe3)(3)(THF)(2) afforded (L-2)(2)Lu(CH2SiMe3)(THF) (2), selectively, which gradually deproportionated to a homoleptic complex (L-2)(3)Lu (3) at room temperature within a week. Strikingly, under the same condition, 2-(2,6-Me2C6H3NH)-C6H4P(Ph)(2) (HL3) swiftly reacted with Ln(CH2SiMe3)(3)(THF)(2) at room temperature for 3 h to yield the corresponding lanthanide bis(alkyl) complexes L(3)Ln(CH2SiMC3)(2)(THF)(n) (4a: Ln = Y, n = 2; 4b: Ln = Sc, n = 1; 4c: Ln = Lu, n = 1; 4d: Ln = Yb, n = 1; 4e: Ln = Tm, n = 1) in high yields. All complexes have been well defined and the molecular structures of complexes 1, 2, 3 and 4b-e were confirmed by X-ray diffraction analysis. The scandium bis(alkyl) complex activated by AlEt3 and [Ph3C][B(C6F5)(4)], was able to catalyze the polymerization of ethylene to afford linear polyethylene. (C) 2007 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000250741200018 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/61771]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Cui, Dongmei |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Shihui,Miao, Wei,Tang, Tao,et al. Rare earth metal bis(alkyl) complexes bearing amino phosphine ligands: Synthesis and catalytic activity toward ethylene polymerization[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY,2007,692(22):4943-4952. |
| APA | Li, Shihui,Miao, Wei,Tang, Tao,Cui, Dongmei,Chen, Xuesi,&Jing, Xiabin.(2007).Rare earth metal bis(alkyl) complexes bearing amino phosphine ligands: Synthesis and catalytic activity toward ethylene polymerization.JOURNAL OF ORGANOMETALLIC CHEMISTRY,692(22),4943-4952. |
| MLA | Li, Shihui,et al."Rare earth metal bis(alkyl) complexes bearing amino phosphine ligands: Synthesis and catalytic activity toward ethylene polymerization".JOURNAL OF ORGANOMETALLIC CHEMISTRY 692.22(2007):4943-4952. |
入库方式： OAI收割
来源：化学研究所
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