Anionic lanthanide complexes supported by a pyrrole-based tetradentate Schiff base ligand: Synthesis, structures and catalytic activity toward the polymerization of epsilon-caprolactone
文献类型：期刊论文
| 作者 | Zhang, Xue-Qing1; Lin, Miao-Shui1; Hu, Bin2; Chen, Wen-Qian1; Zheng, Li-Na1; Wu, Jian1; Chen, Yan-Mei; Zhou, Feng-Ying1; Li, Ya-Hong1,3; Li, Wu2 |
| 刊名 | POLYHEDRON
 |
| 出版日期 | 2012-02-09 |
| 卷号 | 33期号:1页码:273-279 |
| 关键词 | Anionic Lanthanide Synthesis Crystal Structure Polymerization |
| 文献子类 | Article |
| 英文摘要 | The synthesis of the anionic organolanthanide complexes supported by H(2)bppda (H(2)bppda = N,N'-bis(2-pyrrylmethylidene)-1,2-phenylenediamine) ligand via different synthetic strategies is reported. Treatment of 1:4 mixture of LnCl(3)(THF)(3) and LiN(SiMe3)(2) with 2 equivalents of H(2)bppda in THF gave complexes of the formula [Li(THF)(4)][Ln(bppda)(2)]center dot THF (Ln = Nd (1 center dot THF), Sm (2 center dot THF), Gd (3 center dot THF), Dy (4 center dot THF), Er (5 center dot THF)) and [Li(THF)(5)][Yb(bPPda)(2)] (8). Reaction of Nd(BH4)(3)(THF)(3) with 2 equivalents of Na(2)bppda in THF generated [Na(THF)(6)][Nd(bppda)(2)] (7) in good yield. Treatment of 1-THF with 1 equivalent of CoCP2 in THF led to the isolation of [coCp(2)][Nd(bppda)(2)] (8). All of the complexes have been characterized by single crystal X-ray diffraction and elemental analyses. Complexes 1 center dot THF-5 center dot THF are isomorphous and isostructural, and the geometry of the octa-coordinated Ln(3+) ion in [Ln(bppda)(2)](-) unit in these complexes is well described as either distorted dodecahedron or distorted bicapped trigonal prism. Lanthanide contraction was observed in 1 center dot THF-5 center dot THF and 6. The structures of complexes 1 center dot THF, 7 and 8 are different from each other due to the variation of the cationic ions. The ring-opening polymerization reaction of epsilon-caprolactone initiated by 1 center dot THF was conducted; it showed good activity. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS关键词 | N-HETEROCYCLIC CARBENE ; COORDINATION CHEMISTRY ; REACTIVITY ; DYSPROSIUM ; BLOCK |
| WOS研究方向 | Chemistry ; Crystallography |
| 语种 | 英语 |
| WOS记录号 | WOS:000300643100037 |
| 源URL | [http://ir.isl.ac.cn/handle/363002/5559]  |
| 专题 | 青海盐湖研究所_青海盐湖研究所知识仓储 中国科学院青海盐湖研究所 |
| 作者单位 | 1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Key Lab Organ Synth Jiangsu Prov, Suzhou 215006, Peoples R China 2.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 3.Lanzhou Univ, State Key Lab Appl Organ Chem, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Xue-Qing,Lin, Miao-Shui,Hu, Bin,et al. Anionic lanthanide complexes supported by a pyrrole-based tetradentate Schiff base ligand: Synthesis, structures and catalytic activity toward the polymerization of epsilon-caprolactone[J]. POLYHEDRON,2012,33(1):273-279. |
| APA | Zhang, Xue-Qing.,Lin, Miao-Shui.,Hu, Bin.,Chen, Wen-Qian.,Zheng, Li-Na.,...&Li, Wu.(2012).Anionic lanthanide complexes supported by a pyrrole-based tetradentate Schiff base ligand: Synthesis, structures and catalytic activity toward the polymerization of epsilon-caprolactone.POLYHEDRON,33(1),273-279. |
| MLA | Zhang, Xue-Qing,et al."Anionic lanthanide complexes supported by a pyrrole-based tetradentate Schiff base ligand: Synthesis, structures and catalytic activity toward the polymerization of epsilon-caprolactone".POLYHEDRON 33.1(2012):273-279. |
入库方式： OAI收割
来源：青海盐湖研究所
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