Rare-earth-metal mixed hydride/aryloxide complexes bearing mono(cyclopentadienyl) ligands. Synthesis, CO(2) fixation, and catalysis on copolymerization of CO(2) with cyclohexene oxide
文献类型：期刊论文
| 作者 | Cui, Dongmei1,2; Nishiura, Masayoshi1; Tardif, Olivier1; Hou, Zhaomin1 |
| 刊名 | ORGANOMETALLICS
 |
| 出版日期 | 2008-06-09 |
| 卷号 | 27期号:11页码:2428-2435 |
| ISSN号 | 0276-7333 |
| DOI | 10.1021/om800170x |
| 英文摘要 | Hydrogenolysis of mono(cyclopentadienyl)-ligated rare-earth-metal bis(alkyl) complexes Cp'Ln-(CH(2)SiMe(3))2(THF) (Ln = Y (1a), Dy (1b), Lu (1c); Cp' = C(5)Me(4)SiMe(3)) with PhSiH(3) afforded the mixed hydride/alkyl complexes [Cp'Ln(mu-H)(CH(2)SiMe(3))(THF)](2) (Ln = Y (2a), Dy (2b), Lu (2c)). The overall structure of complexes 2a-c is a C(2)-symmetric dimer containing a planar symmetric Ln(2)H(2) core at the center of the molecule. Deprotonation of ArOH (Ar = C(6)H(2)-(t)Bu(2)-2,6-Me-4) by the metal alkyl group of 2a-c led to formation of the mixed hydride/aryloxide derivatives [Cp'Ln(mu-H)(OAr)](2) (Ln = Y (3a), Dy (3b), Lu (3c)), which adopt the dimeric structure through hydride bridges with trans-accommodated terminal aryloxide groups. Complexes 3a-c swiftly reacted with CO(2) to generate the mixed formate/carbonate complexes [Cp'Ln(mu-eta(1):eta(1)-O(2)CH)(mu-eta(1):eta(1)-O(2)COAr)](2) (Ln = Y (4a), Dy (4b), Lu (4c)). The two Cp'Ln fragments in these complexes are bridged by the formate and carbonate species, respectively, to form two square-pyramidal geometries around the metal centers. Furthermore, complexes 3a-c initiated the copolymerization of CO(2) and cyclohexene oxide (CHO) under mild conditions to afford polymers with modest molecular weights and high carbonate linkages (92-99%). |
| 语种 | 英语 |
| WOS记录号 | WOS:000256232600009 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/64477]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Hou, Zhaomin |
| 作者单位 | 1.RIKEN, Organomet Chem Lab, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan 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 | Cui, Dongmei,Nishiura, Masayoshi,Tardif, Olivier,et al. Rare-earth-metal mixed hydride/aryloxide complexes bearing mono(cyclopentadienyl) ligands. Synthesis, CO(2) fixation, and catalysis on copolymerization of CO(2) with cyclohexene oxide[J]. ORGANOMETALLICS,2008,27(11):2428-2435. |
| APA | Cui, Dongmei,Nishiura, Masayoshi,Tardif, Olivier,&Hou, Zhaomin.(2008).Rare-earth-metal mixed hydride/aryloxide complexes bearing mono(cyclopentadienyl) ligands. Synthesis, CO(2) fixation, and catalysis on copolymerization of CO(2) with cyclohexene oxide.ORGANOMETALLICS,27(11),2428-2435. |
| MLA | Cui, Dongmei,et al."Rare-earth-metal mixed hydride/aryloxide complexes bearing mono(cyclopentadienyl) ligands. Synthesis, CO(2) fixation, and catalysis on copolymerization of CO(2) with cyclohexene oxide".ORGANOMETALLICS 27.11(2008):2428-2435. |
入库方式： OAI收割
来源：化学研究所
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