Pincer Chromium(II) and Chromium(III) Complexes Supported by Bis(imino)aryl NCN ligands: Synthesis and Catalysis on Isoprene Polymerization
文献类型：期刊论文
| 作者 | Liu ZZ ; Gao W ; Liu XM ; Luo XY ; Cui DM ; Mu Y |
| 刊名 | organometallics
 |
| 出版日期 | 2011 |
| 卷号 | 30期号:4页码:749-756 |
| 关键词 | ETHYLENE POLYMERIZATION SYNDIOTACTIC 1 OLEFIN POLYMERIZATION 2-POLYBUTADIENE DIENE POLYMERIZATION CONJUGATED DIOLEFINS ACTIVE CATALYSTS METHYL COMPOUNDS DONOR LIGAND OLIGOMERIZATION BUTADIENE |
| ISSN号 | 0276-7333 |
| 通讯作者 | gao w |
| 中文摘要 | reactions of 2,6-(arn=ch)(2)c(6)h(3)li with crcl(2)(thf)(2) afford two trinuclear bis(imino)aryl ncn pincer cr(ii) complexes {[2,6-(arn=ch)(2)c(6)h(3)]cr(mu-cl)(2)}(2)cr [ar = 2,6-me(2)c(6)h(3) (1a), 2,6-et(2)c(6)h(3) (1b)], and a mononuclear bis(imino)aryl ncn pincer cr(ii) complex [2,6-(arn=ch)(2)c(6)h(3)]cr(mu-cl)(2)li(thf)(2) [ar = 2,6-(i)pr(2)c(6)h(3) (1c)], respectively. similar reactions of 2,6-(arn=ch)(2)c(6)h(3)li with crcl(3)(thf)(3) produce only mononuclear bis(imino)aryl ncn pincer cr(iii) complexes [2,6-(arn=ch)(2)c(6)h(3)]crcl(2)(thf) [ar = 2,6-me(2)c(6)h(3) (2a), 2,6-et(2)c(6)h(3) (2b), 2,6-(i)pr(2)c(6)h(3) (2c)]. x-ray crystallographic analysis reveals that the terminal cr(ii) atoms in la and lb and the cr(ii) atom in le possess a distorted trigonal bipyramidal coordination environment with the c(ipso) atom of the pincer ligand and two chloride atoms in the equator and the two imine nitrogen atoms in the apical positions, while the cr(iii) complexes 2a, 2b, and 2c all adopt a distorted octahedral geometry around the chromium metal. upon activation with trialkylaluminum and [ph3c](+)[b(c(6)f(5))(4)](-), the cr(iii) complexes show high catalytic activity for isoprene polymerization and afford polyisoprene with predominately trans-1,4 units, whereas the cr(i i) complexes are inert under the same conditions. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| WOS记录号 | WOS:000287546600013 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44802]  |
| 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 | Liu ZZ,Gao W,Liu XM,et al. Pincer Chromium(II) and Chromium(III) Complexes Supported by Bis(imino)aryl NCN ligands: Synthesis and Catalysis on Isoprene Polymerization[J]. organometallics,2011,30(4):749-756. |
| APA | Liu ZZ,Gao W,Liu XM,Luo XY,Cui DM,&Mu Y.(2011).Pincer Chromium(II) and Chromium(III) Complexes Supported by Bis(imino)aryl NCN ligands: Synthesis and Catalysis on Isoprene Polymerization.organometallics,30(4),749-756. |
| MLA | Liu ZZ,et al."Pincer Chromium(II) and Chromium(III) Complexes Supported by Bis(imino)aryl NCN ligands: Synthesis and Catalysis on Isoprene Polymerization".organometallics 30.4(2011):749-756. |
入库方式： OAI收割
来源：长春应用化学研究所
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