机械化学合成 ((III) 含有双酸PN和三酸P-NH-P和P-NH-P'联体的复合物
Tomilola J Ajayi1, Alan J Lough1, Robert H Morris1
1Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto M5S3H6, Ontario, Canada.
ACS omega
|May 6, 2024
概括
使用机械化学合成了新的 (III) 复合物. 这些复合物表现出有趣的电子和磁性特性,但对阿尔迪米因化不活跃,并发现了一种基于溶剂的化途径.
科学领域:
- 有机金属化学 有机金属化学
- 机械化学 机械化学
- 协调化学 协调化学
背景情况:
- 复合物在催化和材料科学中非常有价值.
- 机械化学合成为复杂的制备提供了无溶剂和高效的途径.
- 了解带对金属复杂性质的影响对于设计新功能材料至关重要.
研究的目的:
- 通过机械化学方法合成新的 (III) 复合物.
- 研究合成复合物的结构性,电子性,磁性和电化学性.
- 评估这些复合物在阿尔迪米因化中的催化活性.
主要方法:
- 机械化学合成涉及研磨(III) 前体与二酸和三酸氨基联体.
- 在乙二中进行再结晶,以分离纯复合物.
- 单晶X射线衍射用于结构阐明.
- 用于性能分析的光谱 (UV-Vis),磁性和电化学测量.
主要成果:
- 四个 (III) 复合物 (1-4) 通过机械化学研磨来合成高产量 (95-97%).
- X射线衍射证实了复合物2 (cis-[Cr(P'N) Cl2]Cl) 和4 (mer-Cr(P-NH-P') Cl3) 的结构.
- 复合体展示了高旋转的d3配置,其电子和磁性特性受到连接体结构和体积的影响.
- 复合物在阿尔迪米因化中不活跃,但观察到一种新的溶剂衍生化与Mg/TMSCl.
结论:
- 机械化学合成是一种有效的方法,用于制备具有多种连接体的 (III) 复合物.
- 联体结构显著影响 (III) 复合物的电子,磁性和结构性质.
- 合成的复合物不是测试的阿尔迪明化试验的活性催化剂.
- 在特定的添加条件下,利用THF作为源的新化途径被发现.
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