College of Chemistry, Fuzhou University, Fuzhou 350108, China.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
Inorg Chem. 2021 Feb 1;60(3):1320-1324. doi: 10.1021/acs.inorgchem.0c03627. Epub 2021 Jan 8.
Fluorescent agents play an important role in the peroxyoxalate chemiluminescence system. However, the effect of different frameworks on chemiluminescence (CL) has not been explored. Herein two pyrene-based metal-organic frameworks (MOFs), [PbL]·2DMA·2HO () and [(CaL)·(DMF)]·2.5DMF·6HO () (HL = 5,5'-(-pyrene-1,6-diyl)-diisophthalic acid; DMA = ,'-dimethylacetamide; DMF = ,'-dimethylformamide), have been successfully synthesized and are applied to CL. They both exhibit strong and lasting emission that is visible to the naked eye and is significantly stronger than that of the ligand. More importantly, compared with , has notably better CL performance. We infer that the reason may be that has higher stability and larger open channels, which can avoid the aggregation of organic ligands as well as provide an effective pathway for the active substance to diffuse into the channels.
荧光剂在过氧草酸酯化学发光体系中起着重要作用。然而，不同骨架对化学发光（CL）的影响尚未得到探索。本文合成了两种基于芘的金属有机骨架（MOFs），[PbL]·2DMA·2HO () 和 [(CaL)·(DMF)]·2.5DMF·6HO ()（HL = 5,5'-(-芘-1,6-二基）-二异酞酸；DMA =,'-二甲基乙酰胺；DMF =,'-二甲基甲酰胺），并将其应用于 CL。它们都表现出强烈且持久的肉眼可见的发射，比配体强得多。更重要的是，与 相比， 具有明显更好的 CL 性能。我们推断原因可能是 具有更高的稳定性和更大的开放通道，可以避免有机配体的聚集，并为活性物质扩散到通道中提供有效的途径。
