Bimetallic Rare Earth Alkyl Complexes Bearing Bridged Amidinate Ligands: Synthesis and Activity for L-Lactide Polymerization
文献类型：期刊论文
| 作者 | Yang Jianping1; Xu Ping2; Luo Yunjie1,2,3 |
| 刊名 | CHINESE JOURNAL OF CHEMISTRY
 |
| 出版日期 | 2010-03-01 |
| 卷号 | 28期号:3页码:457-462 |
| 关键词 | Rare Earths Bridged Amidinate Ligand Synthesis Ring-opening Polymerization |
| ISSN号 | 1001-604X |
| 英文摘要 | Four novel bridged-amidines H(2)L {1,4-R(1)[C(=NR(2))(NHR(2))}(2) [R(1) =C(6)H(4), R(2)=2,6-(i)Pr(2)C(6)H(3) (H(2)L(1)); =C(6)H(4), R(2)=2,6-Me(2)C(6)H(3) (H(2)L(2)); R(I) =C(6)H(10), R(2)=2,6-(i)Pr(2)C(6)H(3) (H(2)L(3)); R(i) =C(6)H(10), R(2)= 2,6-Me(2)C(6)H(3) (H(2)L(4))]} were synthesized in 65%-78% isolated yields by the condensation reaction of dicarboxylic acid with four equimolar amounts of amines in the presence of PPSE at 180 degrees C. Alkane elimination reaction of Ln(CH(2)SiMe(3))(3)(THF)(2) (Ln=Y. Lu) with 0.5 equiv. of amidine in THF at room temperature afforded the corresponding bimetallic rare earth alkyl complexes (THF)(Me(3)SiCH(2))(2)LnL(1)Ln(CH(2)SiMe(3))(2)(THF) [Lit = Y (1), Lu (2)1, (THF)(Me(3)SiCH(2)),LnL(2)Ln(CH(2)SiMe(3))(2)(THF) [Ln=Y (3), Lu (4)], (THF)(Me(3)SiCH(2))(2)YL(3)Y(CH(2)S(1)Me(3))(2)(THF) (5), (THF)(Me(3)SiCH(2))(2)YL(4)-Y(CH(2)SiMe(3))(2)(THF) (6) in 72%-80% isolated yields. These neutral complexes showed activity towards L-lactide polymerization in toluene at 70 degrees C to give high molecular weight (M>10(4)) and narrow molecular weight distribution 1.40) polymers. |
| 语种 | 英语 |
| WOS记录号 | WOS:000276327400021 |
| 出版者 | WILEY-BLACKWELL |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/70327]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Luo Yunjie |
| 作者单位 | 1.Ningbo Univ Technol, Dept Chem Engn, Ningbo 315211, Zhejiang, Peoples R China 2.Zhejiang Univ, Ningbo Inst Technol, Organometall Chem Lab, Ningbo 315100, Zhejiang, Peoples R China 3.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Jianping,Xu Ping,Luo Yunjie. Bimetallic Rare Earth Alkyl Complexes Bearing Bridged Amidinate Ligands: Synthesis and Activity for L-Lactide Polymerization[J]. CHINESE JOURNAL OF CHEMISTRY,2010,28(3):457-462. |
| APA | Yang Jianping,Xu Ping,&Luo Yunjie.(2010).Bimetallic Rare Earth Alkyl Complexes Bearing Bridged Amidinate Ligands: Synthesis and Activity for L-Lactide Polymerization.CHINESE JOURNAL OF CHEMISTRY,28(3),457-462. |
| MLA | Yang Jianping,et al."Bimetallic Rare Earth Alkyl Complexes Bearing Bridged Amidinate Ligands: Synthesis and Activity for L-Lactide Polymerization".CHINESE JOURNAL OF CHEMISTRY 28.3(2010):457-462. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。