近日，中国科学院福建物质结构研究所张健团队报道了配体功能化促进手性MOF的圆偏振发光。2026年2月24日，《结构化学》杂志发表了这一成果。

手性金属有机框架材料（CMOFs）因其手性与发光的有效协同作用，在圆偏振发光（CPL）领域展现出巨大潜力。

研究组以圆偏振荧光能量转移（CPF-ET）为设计原则，通过配体功能化策略构筑具有CPL活性的CMOFs材料。研究组选用光学纯手性苯并咪唑衍生配体与取代苯二甲酸，成功合成三对CMOF对映异构体。所得镉基CMOFs具有qzd拓扑结构，并表现出随取代基可调的圆偏振发光行为。

值得注意的是，S/R-1的CPL响应可忽略不计，而其同构类似物S/R-1-NH₂的|glum|值显著增强至5.3 × 10^-3。该系列材料中配体功能化对CPL性能的显著影响，揭示了其在手性光学材料设计中的关键作用，为基于CPF-ET机制的新型手性光子材料提供了理性设计策略。

附：英文原文

Title: Ligand functionalization boosts circularly polarized luminescence in chiral MOFs

Author: anonymous

Issue&Volume: 2026-02-24

Abstract: Chiral metal-organic frameworks (CMOFs) exhibit significant potential for circularly polarized luminescence (CPL) due to their effective cooperation of chirality and luminescence. Herein, we utilize circularly polarized fluorescence energy transfer (CPF-ET) as a guiding principle to engineer CPL-active CMOFs through ligand functionalization. Three pairs of enantiomeric CMOFs were synthesized from optically pure chiral benzimidazole-derived ligands and substituted phenyl dicarboxylic acids. The resulting Cd-based CMOFs feature qzd topology and exhibit tunable CPL behaviors dependent on the substituents. Notably, while S/R-1 shows a negligible CPL response, its isomorphic analogue S/R-1-NH2 achieves a significantly enhanced |glum| of 5.3 × 10-3. The substantial impact of ligand functionalization on CPL performance, demonstrated across the series, highlights its critical role and provides a rational design strategy for advanced chiral photonic materials based on the CPF-ET mechanism.

DOI: 10.1016/j.cjsc.2026.100912

Source: https://cjsc.ac.cn/cms/issues/1006