工程科罗尔和基多变体金属有机框架用于Si-H键插入
Huan Lin1, Qijie Mo1, Yufei Wang1
1Sun Yat-Sen University, Guangzhou 510006, China.
Inorganic chemistry
|December 6, 2024
概括
我们使用和氨酸合成了新的多变异性氨酸金属有机框架. 由此产生的FeCl ((TCPC) @Ni-PCN-222框架有效催化Si-H键插入反应,并且可以重复使用.
科学领域:
- 协调化学 协调化学
- 材料科学 材料科学 材料科学
- 催化剂是一种催化剂.
背景情况:
- 合并氨酸类似物Corrols具有独特的酸性和协调性质,但由于对称性较低,因此很难将其纳入金属有机框架 (MOF).
- 氨基MOF为催化提供了多功能平台,但整合不那么对称的配体,如Corrols,会带来合成障碍.
研究的目的:
- 开发一种用于多变量氨酸金属有机框架的单合成方法,其中包含冠状体连接物.
- 调查这些新型MOF在Si-H键插入反应与α-diazoacetates中的催化应用.
主要方法:
- M1 ((TCPC) @M2-PCN-222框架的单合成,其中TCPC是5,10,15-tris ((4-carboxyphenyl) 冠醇,M1/M2是各种金属离子.
- 对合成的MOF进行Si-H键插入反应的催化试验.
- 机制研究以阐明MOF结构内的协同催化效应.
主要成果:
- 成功合成了一系列基于角醇和氨酸的多变量MOFs.
- FeCl ((TCPC) @Ni-PCN-222在Si-H键插入方面表现出高的催化效率 (周转率为796).
- 催化剂表现出极好的可重复使用性,在至少5个周期内保持活性.
结论:
- 开发的"一"战略使得MOF可以纳入,克服了以前的合成限制.
- 在FeCl ((TCPC) 活性部位和Ni-PCN-222框架之间的协同相互作用对于高效的金属碳化合物形成和凝固至关重要.
- 这些多变异的氨酸MOF为重要的有机转化提供了有前途的可回收催化剂.
相关概念视频
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