制造基于聚氧甲酸盐的金属有机框架,集成Paddlewheel Rh2(OAc)4用于可见光驱动的氨基的氧化合
Yanan Liu1,2, Luoning Li1, Sha Meng1
1Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, P. R. China.
Inorganic chemistry
|August 2, 2023
概括
新的基于聚氧甲的金属有机框架 (POMOFs) 显示了对有机氧化反应的增强光催化活性. 这些可重复使用的催化剂显示出对环保化学合成的巨大潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
- 有机化学 有机化学
背景情况:
- 开发高效,可重复使用和环保的光催化剂对于可持续的有机合成至关重要.
- 可见光响应材料对于高能效的化学转化非常受欢迎.
研究的目的:
- 合成和描述基于聚氧甲酸盐的新型金属有机框架 (POMOF).
- 研究这些POMOF在有机氧化反应中的光催化活性,特别是胺合和烯环氧化.
- 阐明组件之间的协同效应,并了解结构-活动关系.
主要方法:
- 通过结合Rh2(OAc) 4和各种多氧甲酸盐 (POMs) 来合成四种同型POMOF.
- 使用单晶X射线衍射进行系统的表征.
- 在胺氧化合和烯环氧化反应中对光催化性能的评估.
- 电化学测量以了解活动差异.
主要成果:
- 合成的POMOFs表现出独特的结构特征,POMs作为节点,Rh2(OAc) 4作为链接器.
- POMOFs的光催化活性超过了单个Rh2(OAc) 4或POMs的光催化活性,这表明了协同效应.
- 在使用NaRh-SiW作为催化剂的基合中,获得了96.1%的imini产量,具有很高的稳定性 (在三个周期后产量为92%).
- 在各种基因的选择性环氧化中表现出高活性.
结论:
- POMOFs是有机氧化的有效可见光驱动光催化剂.
- Rh2(OAc) 4和POM之间的协同相互作用是增强催化性能的关键.
- 这些POMOF为开发稳定高效的绿色氧化催化剂提供了一个有前途的平台.
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