Rare-earth dichloro and bis(alkyl) complexes supported by bulky amido-imino ligand. Synthesis, structure, reactivity and catalytic activity in isoprene polymerization
文献类型：期刊论文
| 作者 | Kissel AA ; Lyubov DM ; Mahrova TV ; Fukin GK ; Cherkasov AV ; Glukhova TA ; Cui DM ; Trifonov AA |
| 刊名 | dalton transactions
 |
| 出版日期 | 2013 |
| 卷号 | 42期号:25页码:9211-9225 |
| 关键词 | RING-OPENING POLYMERIZATION BETA-DIKETIMINATO LIGANDS ALPHA-DIIMINE LIGANDS H BOND ACTIVATION YTTRIUM COMPLEXES ALKYL COMPLEXES ORGANOMETALLIC COMPOUNDS LACTIDE POLYMERIZATION LANTHANIDE CHEMISTRY GUANIDINATE LIGANDS |
| ISSN号 | 1477-9226 |
| 通讯作者 | trifonov aa |
| 中文摘要 | a monoanionic amido-imino ligand system [(2,6-ipr(2)c(6)h(3))n=c(me)c(vch(2))n(c6h3-2,6-ipr(2))](-) was successfully employed for the synthesis of monomeric dichloro [(2,6-ipr(2)c(6)h(3))n=c(me)c(vch(2))n(c6h3-2,6-ipr(2))] lncl(2)(thf)(2) (ln = y, 2y; lu, 2lu) and bis(alkyl) [(2,6-ipr(2)c(6)h(3))n=c(me)c(vch(2))n(c6h3-2,6-ipr(2))]ln-(ch2sime3)(2)(thf) (ln = y, 4y; lu, 4lu) species of yttrium and lutetium. dichloro complexes 2y and 2lu turned out to be unstable in aromatic solvents. the ligand symmetrization reaction in the case of 2y affords the yttrium complex coordinated by dianionic [(2,6-ipr(2)c(6)h(3))n=c(me)c(vch(2))n(c6h3-2,6-ipr(2))]2ligand, (2,6-ipr(2)c(6)h(3))n=c(me)c(vch(2))n(c6h3-2,6-ipr(2)) and ycl3. on the contrary, bis(alkyl) species 4y and 4lu are rather stable and do not undergo such a transformation or thermal decomposition. the treatment of complex 4y with dme resulted in c-o bond cleavage and the formation of a dimeric methoxy-alkyl species {[(2,6-ipr(2)c(6)h(3))n=c(me)c(vch(2))n(c6h3-2,6-ipr(2))]y(ch2sime3)(mu-ome)}(2) (5). the ternary systems 4ln/alibu(3)/borate (borate = [hnme2ph][b(c6f5)(4)] and [cph3][b(c6f5)(4)]; molar ratio 1 : 10 : 1) performed high catalytic activity in isoprene polymerization and ability to convert into polymer 1000-5000 equivalents of isoprene in 20-120 min with quantitative conversion. the obtained polyisoprenes possessed high molecular weights (2.9 x 10(4)-4.1 x 10(4)) and moderate polydispersities (2.14-3.52). predominant 3,4-regioselectivity (up to 78%) was observed. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000319875600027 |
| 公开日期 | 2014-04-18 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/50263]  |
| 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 | Kissel AA,Lyubov DM,Mahrova TV,et al. Rare-earth dichloro and bis(alkyl) complexes supported by bulky amido-imino ligand. Synthesis, structure, reactivity and catalytic activity in isoprene polymerization[J]. dalton transactions,2013,42(25):9211-9225. |
| APA | Kissel AA.,Lyubov DM.,Mahrova TV.,Fukin GK.,Cherkasov AV.,...&Trifonov AA.(2013).Rare-earth dichloro and bis(alkyl) complexes supported by bulky amido-imino ligand. Synthesis, structure, reactivity and catalytic activity in isoprene polymerization.dalton transactions,42(25),9211-9225. |
| MLA | Kissel AA,et al."Rare-earth dichloro and bis(alkyl) complexes supported by bulky amido-imino ligand. Synthesis, structure, reactivity and catalytic activity in isoprene polymerization".dalton transactions 42.25(2013):9211-9225. |
入库方式： OAI收割
来源：长春应用化学研究所
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