期刊
CCS CHEMISTRY
卷 3, 期 11, 页码 466-472出版社
CHINESE CHEMICAL SOC
DOI: 10.31635/ccschem.021.202000393
关键词
ultralong organic phosphorescence; noncovalent interactions; solid-state structure; H-aggregation; pi interaction
资金
- National Natural Science Foundation of China [21975120, 21875104, 21973043, 91833304, 91833302]
- National Key R&D Program of China [2020YFA0709900]
- Natural Science Fund for Distinguished Young Scholars of Jiangsu Province [BK20180037]
- China National Postdoctoral Program for Innovative Talents [BX20200278]
- China Postdoctoral Science Foundation [2020M673478]
The newly reported organic compound DCzPO forms a SOF structure with ultralong phosphorescence, exhibiting high phosphorescence efficiency and extended emission lifetime. This single-component SOF provides a new research platform for the rational combination of UOP and porous materials.
Supramolecular organic frameworks (SOFs), due to the atomically precise integration of the repeated building units, exhibit intriguing properties and consequently potential applications in chemical and materials science communities. However, it remains a great challenge to achieve SOFs with ultralong organic phosphorescence (UOP) in a single-component system. Herein, we report metal-free organic compound 9,9'-(6-(2-bromophenethoxy)1,3,5-triazine-2,4-diy1)bis(9H-carbazole) (DCzPO) with UOP behavior. Owing to the combination of multiple supramolecular interactions, DCzPO formed a SOF structure with regular hexagonal holes, which shows an ultralong emission lifetime of 398 ms and a phosphorescence efficiency of 3%. So far as we know, among the reported luminescent SOFs, this one is the most highly efficient. This single-component SOF with ultralong phosphorescence will provide a new platform to rationally combine UOP and porous materials.
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