Rare earth metal alkyl complexes bearing N,O,P multidentate ligands: Synthesis, characterization and catalysis on the ring-opening polymerization of L-lactide
文献类型：期刊论文
| 作者 | Miao W ; Li SH ; Cui DM ; Huang BT |
| 刊名 | journal of organometallic chemistry
 |
| 出版日期 | 2007 |
| 卷号 | 692期号:17页码:3823-3834 |
| 关键词 | C5ME5/ER-LIGATED SAMARIUM(II) COMPLEXES BETA-DIKETIMINATO LIGANDS X-RAY-STRUCTURE BLOCK-COPOLYMERIZATION LANTHANIDE COMPLEXES ORGANOMETALLIC COMPLEXES ETHYLENE POLYMERIZATION ORGANOYTTRIUM CHEMISTRY LIVING POLYMERIZATIONS STYRENE POLYMERIZATION |
| ISSN号 | 0022-328x |
| 通讯作者 | cui dm |
| 中文摘要 | alkane elimination reactions of rare earth metal tris(alkyl)s, ln(ch2sime3)3(thf)2 (ln = y, lu) with the multidentate ligands hl1-4, afforded a series of new rare earth metal complexes. yttrium, complex i supported by flexible amino-intino phenoxide ligand hl1 was isolated as homoleptic product. in the reaction of rigid phosphino-imino phenoxide ligand hl 2 with equintolar ln(ch2sime3)3(thf)2, hl 2 was deprotonated by the metal alkyl and its imino c=n group was reduced to c-n by intramolecular alkylation, generating thf-solvated mono-alkyl complexes (2a: ln = y; 2b: ln = lu). the di-ligand chelated yttriurn complex 3 without alkyl moiety was isolated when the molar ratio of hl 2 to y(ch,sime3)3(thf)2 increased to 2: 1. reaction of steric phosphino beta-ketoiminato ligand hl 3 with equimolar ln(ch2sime3)3(thf)2 afforded di-ligated mono-alkyl complexes (4a: ln = y; 4b: ln = lu) without occurrence of intramolecular alkylation or formation of homoleptic product. treatment of tetradentate methoxy-amino phenol hl 4 with y(ch2sime3)3(thf)2 afforded a monomeric yttrium bis-alkyl complex of thf-free. the resultant complexes were characterized by ir, nmr spectrum and x-ray diffraction analyses.all alkyl complexes exhibited high activity toward the ring-opening polymerization of l-lactide to give isotactic polylactide with controllable molecular weight and narrow to moderate polydispersity. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000248866700029 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/14041]  |
| 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 | Miao W,Li SH,Cui DM,et al. Rare earth metal alkyl complexes bearing N,O,P multidentate ligands: Synthesis, characterization and catalysis on the ring-opening polymerization of L-lactide[J]. journal of organometallic chemistry,2007,692(17):3823-3834. |
| APA | Miao W,Li SH,Cui DM,&Huang BT.(2007).Rare earth metal alkyl complexes bearing N,O,P multidentate ligands: Synthesis, characterization and catalysis on the ring-opening polymerization of L-lactide.journal of organometallic chemistry,692(17),3823-3834. |
| MLA | Miao W,et al."Rare earth metal alkyl complexes bearing N,O,P multidentate ligands: Synthesis, characterization and catalysis on the ring-opening polymerization of L-lactide".journal of organometallic chemistry 692.17(2007):3823-3834. |
入库方式： OAI收割
来源：长春应用化学研究所
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