有机金属Ir (III) 复合物:合成后的修饰,光物理性质和双核复合体结构
Anastasia Yu Gitlina1, Viktoria Khistiaeva2, Alexey Melnikov3
1Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
Dalton transactions (Cambridge, England : 2003)
|June 19, 2023
概括
对 (III) 复合物的合成后修饰使得新型双核复合物的受控合成成为可能. 这些功能复合体表现出独特的发光特性,为材料科学提供了新的途径.
科学领域:
- 协调化学 协调化学
- 有机金属化学 有机金属化学
- 材料科学 材料科学 材料科学
背景情况:
- (III) 复合物是开发功能性材料的多功能平台.
- 合成后修饰为精确的分子构造提供了一个强大的策略.
- 了解连接的金属中心之间的相互作用对于设计先进材料至关重要.
研究的目的:
- 使用苏子基合和铜 (I) 催化酸循环添加 (CuAAC) 的 (III) 复合物的功能化,点击化学.
- 为了证明合成后修改在构建二-二和二-f双核复合体中的实用性.
- 研究由此产生的单核和双核系统的光物理性质和发光机制.
主要方法:
- 功能化 (III) 复合物的合成和表征.
- 苏苏基合和CuAAC点击反应的应用,用于创建双核结构.
- 光谱技术包括NMR,FTIR,XPS和NEXAFS光谱.
- 单晶X射线衍射用于结构阐明.
- 光物理性能测量和时间依赖密度函数理论 (TDDFT) 计算.
主要成果:
- 成功合成了具有第二个选择性供体部位的功能化 (III) 复合物.
- 通过合成后修改,证明了二-di和di-f双核复合体的受控构建.
- 确认了使用XPS和NEXAFS将二胺捐赠点与胺中心的协调.
- 对光物理性质的详细研究,显示在双核复合体形成时发光的演变.
结论:
- 合成后修改是构建复杂的多核金属系统的有效策略.
- 合成的双核复合体表现出可调节的发光特性.
- TDDFT计算支持了关于发光机制的实验发现.
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