Synthesis, Reactivity, and Characterization of Sodium and Rare-Earth Metal Complexes Bearing a Dianionic N-Aryloxo-Functionalized beta-Ketoiminate Ligand
文献类型：期刊论文
| 作者 | Peng, Hongmei1; Zhang, Zhenqin1; Qi, Ruipeng1; Yao, Yingming1; Zhang, Yong1; Shen, Qi; Cheng, Yanxiang2 |
| 刊名 | INORGANIC CHEMISTRY
 |
| 出版日期 | 2008-11-03 |
| 卷号 | 47期号:21页码:9828-9835 |
| ISSN号 | 0020-1669 |
| DOI | 10.1021/ic8011469 |
| 英文摘要 | The synthesis and reactivity of a series of sodium and rare-earth metal complexes stabilized by a dianionic N-aryloxo-functionalized beta-ketoiminate ligand were presented. The reaction of acetylacetone with 1 equiv of 2-amino-4-methylphenol in absolute ethanol gave the compound 4-(2-hydroxy-5-methylphenyl)imino-2-pentanone (LH2, 1) in high yield. Compound 1 reacted with excess NaH to afford the novel sodium cluster [LNa2(THF)(2)](4) (2) in good isolated yield. Structure determination revealed that complex 2 has the 22-vertex cage structure. Reactions of complex 2 with anhydrous LnCl(3) in a 1:4 molar ratio, after workup, gave the desired lanthanide chlorides [LLnCl(DME)](2) [Ln = Y (3), Yb (4), Tb (5)] as dimers. A further study revealed that complexes 3-5 are inert for chlorine substitution reactions. (ArO)(3)Ln(THF) (ArO = 2,6-Bu-2(t)-4-MeC6H2O) reacted with compound 1 in a 1:1 molar ratio in tetrahydrofuran (THF), after workup, to give the desired rare-earth metal aryloxides as dimers [LLn(OAr)(THF)](2) [Ln = Nd (6), Sm (7), Yb (8), Y (9)] in high isolated yields. All of these complexes are well characterized, and the definitive molecular structures of complexes 2 and 4-6 were determined. It was found that complexes 6-9 can be used as efficient initiators for L-lactide polymerization, and the ionic radii of the central metals have a significant effect on the catalytic activity. |
| 语种 | 英语 |
| WOS记录号 | WOS:000260426700021 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64825]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yao, Yingming |
| 作者单位 | 1.Suzhou Univ, Dept Chem & Chem Engn, Key Lab Organ Synth Jiangsu Prov, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng, Hongmei,Zhang, Zhenqin,Qi, Ruipeng,et al. Synthesis, Reactivity, and Characterization of Sodium and Rare-Earth Metal Complexes Bearing a Dianionic N-Aryloxo-Functionalized beta-Ketoiminate Ligand[J]. INORGANIC CHEMISTRY,2008,47(21):9828-9835. |
| APA | Peng, Hongmei.,Zhang, Zhenqin.,Qi, Ruipeng.,Yao, Yingming.,Zhang, Yong.,...&Cheng, Yanxiang.(2008).Synthesis, Reactivity, and Characterization of Sodium and Rare-Earth Metal Complexes Bearing a Dianionic N-Aryloxo-Functionalized beta-Ketoiminate Ligand.INORGANIC CHEMISTRY,47(21),9828-9835. |
| MLA | Peng, Hongmei,et al."Synthesis, Reactivity, and Characterization of Sodium and Rare-Earth Metal Complexes Bearing a Dianionic N-Aryloxo-Functionalized beta-Ketoiminate Ligand".INORGANIC CHEMISTRY 47.21(2008):9828-9835. |
入库方式： OAI收割
来源：化学研究所
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