A 2D Mn-based MOF ([Mn(PDI)(DMF)(HO)] ()) (HPDI = 5,5′-(1,3,6,8-tetraoxo-1,3,6,8-tetrahydrobenzo[lmn][3,8]phenanthroline-2,7-diyl)diisophthalic acid) was synthesized. Visible light excited Mn-PDI unit in oxidizes NaSOCF to generate CF radical and enables to exhibit activity for trifluoromethylation of (hetero)arenes under visible light. The unusual stability of in the trifluoromethylation reactions can be attributed to its unique structure, which prevents it from corrosion by acid byproduct. The peeling of to ultrathin nanosheets or partial oxidation of Mn(II) to Mn(III) in led to and with significant improved activity for trifluoromethylation reactions, demonstrating the important role of composition and morphology of a catalyst on its performance. The light initiated trifluoromethylation reactions over these Mn-based MOFs was applied to a variety of substrates. This study provides an efficient strategy for synthesis of trifluoromethylated compounds and highlights the potential of MOFs in light initiated organic syntheses.

中文翻译：

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稳定的 Mn(II) 金属有机骨架，用于高效可见光引发的三氟甲基化反应


二维 Mn 基 MOF ([Mn(PDI)(DMF)(H2O)] ()) (HPDI = 5,5′-(1,3,6,8-tetraoxo-1,3,6,8-tetraHydroBenzo)合成[lmn][3,8]菲咯啉-2,7-二基)二间苯二甲酸)。可见光激发的 Mn-PDI 单元氧化 NaSOCF 生成 CF 自由基，并能够在可见光下表现出（杂）芳烃的三氟甲基化活性。在三氟甲基化反应中的异常稳定性可归因于其独特的结构，这可以防止其被酸副产物腐蚀。剥离成超薄纳米片或将 Mn(II) 部分氧化为 Mn(III) 导致三氟甲基化反应活性显着提高，证明了催化剂的组成和形态对其性能的重要作用。这些锰基 MOF 上的光引发三氟甲基化反应被应用于各种基材。这项研究为三氟甲基化化合物的合成提供了一种有效的策略，并强调了 MOF 在光引发有机合成中的潜力。