近日，南京工业大学孙林兵团队实现了用Zr-MOLs与苝二酰亚胺基序连接光催化氧化MOF的拓扑引导结构。相关论文发表在2025年5月26日出版的《结构化学》杂志上。

通过使用多功能连接体连接金属有机层（MOL），可以获得具有新拓扑结构和增强性能的金属有机框架（MOF）。然而，使用线性形状配体通过这种方法构建的新拓扑结构尚未得到探索。 

研究组介绍了NUT-123的设计，通过将近线性苝二亚胺（PDI）衍生物PDI-CH₃-COOH掺入预选的锆基MOL中。3D电子衍射证实了NUT-123中新型拓扑结构的成功构建。此外，结构中均匀分散的PDI基团赋予了增强的光催化能力，同时有效地避免了PDI-CH₃-COOH的自聚集。

NUT-123在硫化物氧化中表现出增强的效率和选择性，并表现出优异的底物相容性，实现了各种有机硫化物的100%转化。机理研究表明，亚砜的形成是由同时进行的电子和能量转移促进的。这项工作填补了通过将MOL与线性形状的连接体连接来构建新拓扑结构的空白，并为选择性硫化物氧化提供了一种光催化剂。

附：英文原文

Title: Topology guided construction of MOF by linking Zr-MOLs with perylene diimide motifs for photocatalytic oxidation

Author: anonymous

Issue&Volume: 2025-05-26

Abstract: Metal-organic frameworks (MOFs) with new topologies and enhanced properties can be obtained by connecting metal-organic layers (MOLs) using multifunctional linkers. However, new topologies constructed by this method using linear-shaped ligands have not yet been explored. Herein, we present the design of NUT-123, by incorporating a near-linear perylene diimide (PDI) derivate, PDI-CH3-COOH into the preselected zirconium-based MOLs. 3D electron diffraction confirms the successful construction of a novel topology in NUT-123. Furthermore, the uniformly dispersed PDI groups within the structure confer enhanced photocatalytic capability while effectively circumventing the self-aggregation of PDI-CH3-COOH. NUT-123 exhibits enhanced efficiency and selectivity in sulfide oxidation and demonstrates excellent substrate compatibility, achieving 100% conversion of various organic sulfides. Mechanistic studies indicate that the formation of sulfoxides is facilitated by concurrent electron and energy transfer. This work fills the gap in constructing a new topology by connecting MOLs with linear-shaped linkers and provides a photocatalyst for selective sulfide oxidation.

DOI: 10.1016/j.cjsc.2025.100625

Source: http://cjsc.ac.cn/cms/issues/807