Covalently Anchored Molecular Catalyst onto a Graphitic Carbon Nitride Surface for Photocatalytic Epoxidation of Olefins,ACS Catalysis

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Covalently Anchored Molecular Catalyst onto a Graphitic Carbon Nitride Surface for Photocatalytic Epoxidation of Olefins
ACS Catalysis ( IF 11.3 ) Pub Date : 2024-09-18 , DOI: 10.1021/acscatal.4c04187
Sebastiano Gadolini ₁ , Rachel N. Kerber ₁ , Riho T. Seljamäe-Green ₁ , Wenming Tong ₂ , Pau Farràs ₂ , Elena C. Corbos ₁

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This study explores an innovative photocatalytic approach using pristine graphitic carbon nitride (C₃N₄) to anchor iron salen-type complexes (FeSalenCl₂) without the need for additional linkers or heterojunctions. The resulting hybrid catalyst, [C₃N₄-FeCl(Salen)]_Chem, exhibits a promising catalytic performance in the selective epoxidation of cyclic and linear olefins using gaseous oxygen as the oxidant. The catalyst’s selectivity closely resembles that of the free iron complex, and its effectiveness varies depending on the olefin substrate. Additionally, solvent selection plays a critical role in achieving optimal performance, with acetonitrile proving to be the best choice. The study demonstrates the potential of C₃N₄ as an environmentally friendly, recyclable, and efficient support for molecular catalysts. The results highlight the versatility and significance of C₃N₄-based materials in advancing light-driven catalysis.

中文翻译：

共价锚定分子催化剂到石墨氮化碳表面，用于烯烃的光催化环氧化

本研究探索了一种创新的光催化方法，使用原始石墨氮化碳（C₃N₄）锚定铁盐型络合物（FeSalenCl₂），而无需额外的接头或异质结。所得的杂化催化剂 [C₃N_4-FeCl（Salen）]_Chem 在使用气态氧作为氧化剂对环状和线性烯烃进行选择性环氧化方面表现出有前途的催化性能。该催化剂的选择性与游离铁络合物的选择性非常相似，其有效性因烯烃底物而异。此外，溶剂选择在实现最佳性能方面起着关键作用，乙腈被证明是最佳选择。该研究表明 C₃N₄ 作为一种环保、可回收和高效的分子催化剂载体的潜力。结果突出了 C₃N₄ 基材料在推进光驱动催化方面的多功能性和重要性。

更新日期：2024-09-18

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