材料科学
超分子化学
发光
光致发光
蜂巢
水溶液
共价键
荧光
电子顺磁共振
反铁磁性
联轴节(管道)
光化学
化学物理
纳米技术
自组装
激进的
量子点
超分子组装
鱿鱼
工作(物理)
化学工程
超分子聚合物
量子产额
光电子学
蜂窝结构
作者
Wei Wang,Tianyi Yang,Lin Shen,Zhiyuan Cui,Haoyuan Qu,ZhanTing Li,Ming Zhang,Shangbo Yu,Guanglu Wu,Feng Li
标识
DOI:10.1002/adma.202513006
摘要
We report the design and synthesis of a water-soluble luminescent radical, TTM-3IMB, which spontaneously assembles with cucurbit[8]uril (CB[8]) into a well-defined 2D honeycomb supramolecular organic framework (SOF) in aqueous solution. Unlike conventional covalent organic frameworks (COFs) or metal-organic frameworks (MOFs), the resulting SOF exhibits dynamic and reversible assembly behavior. Heating to 90°C triggers disassembly of the framework, while subsequent cooling to room temperature induces reassembly, as confirmed by temperature-dependent fluorescence and EPR spectra. This reversible process enables modulation of spin-spin interactions and excited-state dynamics within the framework. The SOF architecture not only enhances the photostability of TTM-3IMB by four times but also increases its photoluminescence quantum efficiency from 2.0% to 5.0%. Multiscale characterization, including EPR, SEM, SAXS, and SQUID measurements, reveals an ordered honeycomb morphology and weak antiferromagnetic coupling among radical units. This work introduces a dynamic supramolecular strategy for constructing open-shell 2D materials in water, offering new opportunities for tunable optoelectronic, magnetic, and bioresponsive applications.
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