EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on alpha-diimine Ni(II) complex activated by MMAO
文献类型：期刊论文
| 作者 | Soshnikov, IE; Semikolenova, NV; Bryliakov, KP; Antonov, AA; Sun, WH ; Talsi, EP
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| 刊名 | JOURNAL OF ORGANOMETALLIC CHEMISTRY
 |
| 出版日期 | 2019-02-01 |
| 卷号 | 880页码:267-271 |
| 关键词 | Monovalent nickel Ethylene polymerization EPR Active species N,N-alpha-diimine ligand |
| ISSN号 | 0022-328X |
| DOI | 10.1016/j.jorganchem.2018.11.021 |
| 英文摘要 | Using EPR spectroscopy, nickel(I) species formed in the catalyst system 1/MMAO for ethylene polymerization has been investigated (1 = LNiBr2, L = 1,4-bis-2,4,6-dimethylphenyl-2,3-dimethyl-1,4-diazabuta-1,3-dien). It has been shown that diamagnetic cationic complex [LNiII-Bu-t](+)[MeMMAO](-) (2) persists in system 1/MMAO at low temperatures, but rapidly decays at 25 degrees C to give new EPR active species 3 (major product) and 4 (minor product). Species 3 is a nickel(I) complex with the proposed structure [LNiI(S)](+)[MeMMAO](-) (S = solvent), whereas 4 is L(center dot-)AlMe2 species. Upon the addition of ethylene, complex 3 partially reversibly converts into the adduct [LNiI(C2H4)](+)[MeMMAO](-) (5). After ethylene consumption, species 3 restores its original concentration. (c) 2018 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000455224100033 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/41954]  |
| 专题 | 化学研究所_工程塑料实验室 |
| 作者单位 | 1.Soshnikov, IE 2.Talsi, EP (reprint author), Russian Acad Sci, Boreskov Inst Catalysis, Siberian Branch, Pr Lavrentieva 5, Novosibirsk 630090, Russia. |
| 推荐引用方式 GB/T 7714 | Soshnikov, IE,Semikolenova, NV,Bryliakov, KP,et al. EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on alpha-diimine Ni(II) complex activated by MMAO[J]. JOURNAL OF ORGANOMETALLIC CHEMISTRY,2019,880:267-271. |
| APA | Soshnikov, IE,Semikolenova, NV,Bryliakov, KP,Antonov, AA,Sun, WH,&Talsi, EP.(2019).EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on alpha-diimine Ni(II) complex activated by MMAO.JOURNAL OF ORGANOMETALLIC CHEMISTRY,880,267-271. |
| MLA | Soshnikov, IE,et al."EPR spectroscopic study of Ni(I) species in the catalyst system for ethylene polymerization based on alpha-diimine Ni(II) complex activated by MMAO".JOURNAL OF ORGANOMETALLIC CHEMISTRY 880(2019):267-271. |
入库方式： OAI收割
来源：化学研究所
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