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在循环德克斯金属有机框架中的选择性光二化
Xiao-Yang Chen1, Haoyuan Chen2, Luka Đorđević1,3
1Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.
Journal of the American Chemical Society
|June 3, 2021
概括
这项研究证明了一种新的金属有机框架 (CD-MOF-1),可以在孔结构内并行,高度选择性地光二氧化1-甲碳酸盐 (1-AC),产生光学活性产物.
科学领域:
- 超分子化学
- 材料科学
- 摄影化学
背景情况:
- 酶通常在单个活性位点连续催化反应.
- 需要能够在狭窄的空间内高效地执行并行反应的催化系统.
研究的目的:
- 开发一种能够容纳并催化并行光二化反应的性多孔材料.
- 在金属-有机框架内研究光二聚变的区域和反选择性.
主要方法:
- 在含有马环的金属有机框架 (CD-MOF-1) 中加入1-马环 (1-AC).
- 用光辐射诱导CD-MOF-1内的1-AC的4+4光二分化.
- 高性能液体染色学 (HPLC) 用于分离和分析区域异构体和异构体.
- 结晶学和理论计算以阐明反应机制.
主要成果:
- CD-MOF-1成功地结合了1-AC,促进了并行 [4+4] 光二分化.
- 能够选择形成四种可能的区域异构体之一.
- 一个高产率的区域异构体表现出具有8:1反构体比的光学活性.
- 晶体分析显示,MOF结构中的1-AC对通过键,疏水和静电相互作用稳定.
结论:
- 性CD-MOF-1作为高度区域和选择性光二分化的支架.
- 在MOF中的非共价相互作用决定了基质构成和反应结果.
- 这项研究提出了用于选择性催化转换的多孔材料设计的新策略.
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