| 2-((2，6-二甲基苯基)氨基)乙醇铝和锌配合物的合成、结构及催化活性 | |
| Synthesis, structures, and catalytic activity of aluminum and zinc complexes chelated by 2-((2,6-dimethylphenyl)amino)ethanolate | |
| 摘要: 研究了AlMe3和ZnEt2与ArNHCH2CH2OH (HL，Ar＝2，6-Me2C6H3)的反应，合成了一个双核铝配合物[(Me2Al)(L)]2(1)及一个四核锌配合物[EtZn2(L)3]2(2)。通过核磁、元素分析及单晶X射线衍射分析，对化合物1和2进行了详细的结构表征。结果表明，配合物1在固态下是一个中心对称的具有Al2O2骨架的二聚体，而配合物2存在一个Zn4O6核，其可被视为缺少一对相反顶点的2个并排立方体结构。初步的催化活性测试表明，铝配合物1对ε-己内酯的开环聚合反应没有催化活性，但锌配合物2却表现出很好的催化活性，且能很好地控制所得聚合物的分子量分布在较窄的范围。 | |
| 关键词: 开环聚合 铝 锌 氨基乙醇 ε-己内酯 | |
| 基金项目: 中国石油天然气股份有限公司石油化工研究院项目资助。 | |
| Abstract: Treatment of ArNHCH2CH2OH (HL, Ar＝2,6-Me2C6H3) with AlMe3 and ZnEt2 resulted in the formation of a bi-aluminum complex, [(Me2Al)(L)]2 (1), and a tetra-zinc complex, [EtZn2(L)3]2 (2), respectively. They were characterized by elemental analysis, NMR, and single-crystal X-ray diffraction analysis. Complex 1 is a crystallographically centrosymmetric dimer with an Al2O2 core in the solid state, while a Zn4O6 core is observed in 2, which can be viewed as two side-by-side cubes missing a pair of opposite vertices. Preliminary catalytic activity tests indicated that the aluminum complex 1 was inactive for the ring-opening polymerization (ROP) of ε-caprolactone, while the zinc complex 2 was a highly active initiator for the ROP of ε-caprolactone and could control the molecular weight distribution of the resulted polymers in narrow ranges. | |
| Keywords: ring-opening polymerization aluminum zinc aminoethanol ε-caprolactone | |
| 投稿时间：2023-11-08 修订日期：2023-12-18 | |
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| 刘安求,蔺隆,张德志,雷珺宇,王科峰,张蔚,庄俊鹏,郝海军.2-((2，6-二甲基苯基)氨基)乙醇铝和锌配合物的合成、结构及催化活性[J].无机化学学报,2024,40(4):791-798. | |
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