Ethylene oligomerization catalyzed by a novel iron complex containing fluoro and methyl substituents
发布时间：2025-04-30
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- 发布时间：
- 2025-04-30
- 论文名称：
- Ethylene oligomerization catalyzed by a novel iron complex containing fluoro and methyl substituents
- 发表刊物：
- Journal of Molecular Catalysis A: Chemical
- 摘要：
- A novel 2,6-bis(imino)pyridyl iron complex, [2,6-(2-F-4-CH3C6H3N=CCH3)(2)C5H3N]FeCl2.H2O (3) has been synthesized by the reaction of the corresponding bis(imino)pyridyl ligand with FeCl2.4H(2)O in tetrahydrofuran (THF). The activity of complex 3 reaches to 10(7) g/mol Fe h in ethylene oligomerization, and the products are mostly (>90%) 1-butene, 1-hexene and 1-octene. As reaction temperature increases, the activities decrease rapidly and the product distributions shift to the low-molecular-weight part. The product distributions are almost unchanged when the Al/Fe molar ratio increases from 420 to 2500, but the catalytic activities increase rapidly at first and then decrease. Other three complexes (2,6-(2-X-4-Y-6-ZC(6)H(3)N=CCH3)(2)C5H3N}FeCl2.nH(2)O (X = CH3, Y = CH3, Z = H, n = 0 (1), X = F, Y = H, Z = F, it = 1 (2)) and {Fe[2,6-(2-FC6H3N=CCH3)(2)C5H3N}(2)](2), [FeCl4](2)(-).H2O (4) have been also synthesized for comparison and used for ethylene oligomerization. The ortho and para substituents on aniline have performed effects on oligomerization activities and distributions of oligomers for 2,6-bis(imino)pyridyl iron complexes.
- 合写作者：
- Zhicheng Zhang; Junfeng Zou; Youliang Hu
- 卷号：
- Volume: 219 Issue: 2
- 页面范围：
- 249-254
- 是否译文：
- 否
- 发表时间：
- 2004-09-16