来自[Co2(CO) 8]的PCP具复合物的溶热合成
Heiko Schratzberger1, Daniel Himmelbauer1, Wolfgang Eder1
1Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163-AC, 1060 Vienna, Austria.
Monatshefte fur chemie
|November 6, 2023
概括
合成了新的复合物与新的P(C-X) P配体. 这些复合体表现出多样化的协调数和自旋状态,为的协调化学和磁性特性提供了洞察力.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
背景情况:
- 碳基是有机金属合成中的多功能前体.
- 素连接体在稳定和调整金属复杂性质方面发挥着至关重要的作用.
- 了解的协调行为对于催化和材料开发至关重要.
研究的目的:
- 合成和表征新的五坐标 (I), (III) 和 (II) 复合物.
- 为了研究这些新形成的复合物的结构和磁性特性.
- 为了探索 ipso-substituted P(C-X) P^Y 连接体对协调的影响.
主要方法:
- 使用[Co2(CO) 8和P(C-X) P^Y连接物进行复合物的溶热合成.
- 使用光谱技术进行表征:核磁共振 (NMR),红外 (IR) 光谱和高分辨率质谱 (HR-MS).
- 用X射线晶体学来阐明代表性复合物的结构.
- 测量磁敏度以确定磁矩和电子配置.
主要成果:
- 形成五坐标的 (I) [CoI (PCPY-R) ]和 (III) [CoIII (PCPY-R) ]复合体.
- (III) 复合物表现出偏磁性 (3.0-3.3μB),与d6中间旋转系统一致.
- 方形平面 ((II) [Co ((PCPNH-tBu) X] 复合物受到特定连接体的青,显示磁矩 (1.8 μB),表明d7低自旋系统.
结论:
- 该研究成功合成并描述了一系列具有不同协调环境和氧化状态的新型复合物.
- 合成的复合物的磁性与它们的电子配置 (d6和d7系统) 相相关.
- 这些结果突出了P(C-X) P^Y连接体在控制复合物的形成和特性方面的多功能性.
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