CCC-Pincer Bis(carbene) Lanthanide Dibromides. Catalysis on Highly cis-1,4-Selective Polymerization of Isoprene and Active Species
文献类型：期刊论文
| 作者 | Lv, K ; Cui, DM |
| 刊名 | organometallics
 |
| 出版日期 | 2010 |
| 卷号 | 29期号:13页码:2987-2993 |
| 关键词 | ZIEGLER-NATTA CATALYSTS N-HETEROCYCLIC CARBENES STEREOSPECIFIC POLYMERIZATION MOLECULAR-STRUCTURE DIENE POLYMERIZATION BIS(N-HETEROCYCLIC CARBENE) METHYLALUMINOXANE CATALYST COMPLEXES YTTRIUM LIGAND |
| ISSN号 | 0276-7333 |
| 通讯作者 | cui dm |
| 中文摘要 | a series of ccc-pincer 2,6-xylenyl bis(carbene)-ligated rare-earth metal dibromides (pbnhc)lnbr(2)(thf)((pbnhc) = 2,6-(2,4,6-me3c6h2nchchncch2)(2)c6h3; ln = sc (1), y (2), la (3), nd (4), sm (5), gd (6), dy (7), ho (8), tm (9), lu (10)) have been synthesized. upon activation with alr3 (r = me, et, bu-i) and [ph3c](+)[b(c6f5)(4)](-), complexes 2, 4, 6, 7, and 8 exhibited high activity and cis-1,4 selectivity (99.6%, 25 degrees c) toward the polymerization of isoprene, although complexes 1, 3, 5, 9, and 10 were inert. the selectivity was not affected by the nature of the central metal and alr3 and was maintained at elevated temperatures up to 80 degrees c (97.4%). the yttrium hydrido aluminate cation [(pbnhc)y(mu-h)(2)(albu2)-bu-i](+) was identified as the active species according to nmr spectroscopic analysis. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000279389500019 |
| 公开日期 | 2012-04-26 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/43620]  |
| 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 | Lv, K,Cui, DM. CCC-Pincer Bis(carbene) Lanthanide Dibromides. Catalysis on Highly cis-1,4-Selective Polymerization of Isoprene and Active Species[J]. organometallics,2010,29(13):2987-2993. |
| APA | Lv, K,&Cui, DM.(2010).CCC-Pincer Bis(carbene) Lanthanide Dibromides. Catalysis on Highly cis-1,4-Selective Polymerization of Isoprene and Active Species.organometallics,29(13),2987-2993. |
| MLA | Lv, K,et al."CCC-Pincer Bis(carbene) Lanthanide Dibromides. Catalysis on Highly cis-1,4-Selective Polymerization of Isoprene and Active Species".organometallics 29.13(2010):2987-2993. |
入库方式： OAI收割
来源：长春应用化学研究所
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