Synthesis, structure, magnetic and catalytic properties of new dinuclear chromium(III) complexes with oxazoline alcoholate ligands
文献类型：期刊论文
| 作者 | Jie, Suyun1,2,3; Pattacini, Roberto1; Rogez, Guillaume4; Loose, Claudia5; Kortus, Jens5; Braunstein, Pierre1 |
| 刊名 | DALTON TRANSACTIONS
 |
| 出版日期 | 2009 |
| 期号 | 1页码:97-105 |
| ISSN号 | 1477-9226 |
| DOI | 10.1039/b809814j |
| 英文摘要 | The dinuclear chromium complexes [Cr-2(N,O)(3)Cl-3] (6) (N,O = 4,4-dimethyl-2-oxazolylmethanolate), [Cr-2(N,O-Me2)(2)(EtOH)(2)Cl-4] (7) and [Cr-2(N,O-Me2)(2)(H2O)(2)Cl-4] (8) (N,O-Me2 = 4,4-dimethyl-2-oxazolyldimethylmethanolate) have been prepared and characterized, including by single-crystal X-ray diffraction. Complex 6 is unsymmetrical, with two chloride ligands terminally bound to one Cr atom, whereas 7 and 8 (in 8 center dot C4H8O) which contain two molecules of coordinated ethanol or water, respectively, are centrosymmetric. These chromium complexes are paramagnetic, and the magnetic properties of 6 and 7 in the solid state correspond to antiferromagnetic behaviour, which was confirmed by DFT calculations of their electronic structures. Complexes 6-8 were evaluated in the catalytic oligomerization and/or polymerization of ethylene with different aluminium-based cocatalysts, and MMAO proved to be the most effective one. In the presence of MMAO, the influence of different reaction parameters, such as the Al/Cr molar ratio, reaction temperature and ethylene pressure, was investigated. Complex 7 showed the highest activity for ethylene polymerization at both 1 atm and 10 atm of ethylene pressure, up to 620 000 g mol(-1)(Cr) h(-1) in the latter case. |
| 语种 | 英语 |
| WOS记录号 | WOS:000264023700012 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/66061]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Braunstein, Pierre |
| 作者单位 | 1.Univ Strasbourg, CNRS, Inst Chim, Chim Coordinat Lab,UMR 7177, F-67070 Strasbourg, France 2.Chinese Acad Sci, Inst Chem, Key Lab Engn Plast, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 4.Grp Mat Inorgan, IPCMS UMR 7504, F-67034 Strasbourg 2, France 5.TU Bergakad Freiberg, Inst Theoret Phys, D-09599 Freiberg, Germany |
| 推荐引用方式 GB/T 7714 | Jie, Suyun,Pattacini, Roberto,Rogez, Guillaume,et al. Synthesis, structure, magnetic and catalytic properties of new dinuclear chromium(III) complexes with oxazoline alcoholate ligands[J]. DALTON TRANSACTIONS,2009(1):97-105. |
| APA | Jie, Suyun,Pattacini, Roberto,Rogez, Guillaume,Loose, Claudia,Kortus, Jens,&Braunstein, Pierre.(2009).Synthesis, structure, magnetic and catalytic properties of new dinuclear chromium(III) complexes with oxazoline alcoholate ligands.DALTON TRANSACTIONS(1),97-105. |
| MLA | Jie, Suyun,et al."Synthesis, structure, magnetic and catalytic properties of new dinuclear chromium(III) complexes with oxazoline alcoholate ligands".DALTON TRANSACTIONS .1(2009):97-105. |
入库方式： OAI收割
来源：化学研究所
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