Synthesis of (Arylimido)vanadium(V) Complexes Containing (2-Anilidomethyl)pyridine Ligands and Their Use as the Catalyst Precursors for Olefin Polymerization
文献类型：期刊论文
| 作者 | Zhang, Shu1; Katao, Shohei1; Sun, Wen-Hua2 ; Nomura, Kotohiro1
|
| 刊名 | ORGANOMETALLICS
 |
| 出版日期 | 2009-10-26 |
| 卷号 | 28期号:20页码:5925-5933 |
| ISSN号 | 0276-7333 |
| DOI | 10.1021/om900633u |
| 英文摘要 | A series of (arylimido)vanadium(V) dichloride complexes containing (2-anilidomethyl)pyridine ligands of the type V(NAr)Cl(2)[2-Ar'NCH(2)(C(5)H(4)N)] [Ar = 2,6-Me(2)C(6)H(3); Ar' = 2,6-Me(2)C(6)H(3) (1a), 2,6-(i)Pr(2)C(6)H(3) (1b), 2,6-F(2)C(6)H(3) (1c)] have been prepared from V(NAr)Cl(3) by treating with Li-[2-Ar'NCH(2)(C(5)H(4)N)], and the structures of 1b,c have been determined by X-ray crystallography. These complexes are effective catalyst precursors for ethylene polymerization in the presence of Al cocatalysts: 1b showed the highest catalytic activities in the presence of Et(2)AlCl (6000 kg PE/mol V.h), and the observed activities of 1a,b in the presence of Et(2)AlCl were much higher than those in the presence of MAO. V(NAr)(CH(2)SiMe(3))(2)[2-Ar'NCH(2)(C(5)H(4)N)] (2a,b) have been prepared by treating 1a,b with 2.0 equiv of LiCH(2)SiMe(3), and their structures have been determined by X-ray crystallography. The dialkyl complex 2b cleanly reacted with 2.0 equiv of (CF(3))(2)CHOH in C(6)D(6) at 25 degrees C to afford V(NAr)(CH(2)SiMe(3))[OCH(CF(3))(2)][2-Ar'NCH(2)(C(5)H(4)N)] (3), and the reaction with 3.0 equiv of (CF(3))(2)CHOH eventually afforded V(NAr)[OCH(CF(3))(2)](2)[2-Ar'NCH(2)(C(5)H(4)N)] (4) from 3 after 3 days. The dialkyl complexes 2a,b showed catalytic activities for ring-opening metathesis polymerization (ROMP) of norbornene in benzene at 80 degrees C in the presence of PMe(3). The ROMP did not occur in the absence of PMe(3) under the same conditions, suggesting that an additional coordination of PMe(3) may be required to induce the alpha-hydrogen elimination. |
| 语种 | 英语 |
| WOS记录号 | WOS:000270789200013 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/65833]  |
| 专题 | 中国科学院化学研究所 化学研究所_工程塑料实验室 |
| 通讯作者 | Nomura, Kotohiro |
| 作者单位 | 1.Nara Inst Sci & Technol, Grad Sch Mat Sci, Nara 6300101, Japan 2.Chinese Acad Sci, Key Lab Engn Plast, Inst Chem, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Shu,Katao, Shohei,Sun, Wen-Hua,et al. Synthesis of (Arylimido)vanadium(V) Complexes Containing (2-Anilidomethyl)pyridine Ligands and Their Use as the Catalyst Precursors for Olefin Polymerization[J]. ORGANOMETALLICS,2009,28(20):5925-5933. |
| APA | Zhang, Shu,Katao, Shohei,Sun, Wen-Hua,&Nomura, Kotohiro.(2009).Synthesis of (Arylimido)vanadium(V) Complexes Containing (2-Anilidomethyl)pyridine Ligands and Their Use as the Catalyst Precursors for Olefin Polymerization.ORGANOMETALLICS,28(20),5925-5933. |
| MLA | Zhang, Shu,et al."Synthesis of (Arylimido)vanadium(V) Complexes Containing (2-Anilidomethyl)pyridine Ligands and Their Use as the Catalyst Precursors for Olefin Polymerization".ORGANOMETALLICS 28.20(2009):5925-5933. |
入库方式： OAI收割
来源：化学研究所
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