状纳米孔金属-金属盐框架用于环氧化物的水解动态分辨率
Chengfeng Zhu1, Guozan Yuan, Xu Chen
1School of Chemistry and Chemical Technology and State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China.
Journal of the American Chemical Society
|May 2, 2012
概括
状金属有机框架与盐连接物有效催化环氧化解. 这种可回收的催化剂通过合作性双金属相互作用实现了高反选择性 (99.5% ee).
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:
- 状金属有机框架 (MOF) 为催化提供可调节的特性.
- 盐-金属复合物是已知的催化剂,但往往遭受低可回收性.
- 开发高效的异质催化剂来进行选合成至关重要.
研究的目的:
- 通过使用奇拉salen连接体,构建奇拉纳米孔的金属有机框架.
- 在水解动力分辨率 (HKR) 中评估基于盐的MOF的催化性能.
- 研究MOF结构在增强催化活性和酶选择性方面的作用.
主要方法:
- 使用二氧化功能化的Ni () 和Co () 连接物合成的纳米孔的金属-有机框架.
- 基MOF的应用作为种族性环氧化物HKR的异质催化剂.
- 使用奇拉色谱分析等离子体过量 (ee).
- 与同质的碳盐催化剂进行比较.
主要成果:
- 基于的MOF证明了对HKR的高效和可回收的异质催化剂.
- 实现了高达99.5% ee的抗选择性.
- MOF结构促进了密的布局和盐单位的紧密关系,增强了双金属合作互动.
- 与同质类型相比,观察到较好的催化活性和酶选择性,特别是在低催化剂负载下.
结论:
- 基盐基的MOF是有效的异质催化剂,用于酶选择性环氧化物分解.
- 独特的MOF架构促进了合作的双金属效应,提高了催化性能.
- 这种方法提供了一种可回收和高度对同质催化剂进行动力分辨的高分离选择性的替代方案.
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