College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, 325035, China.
The University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station A5300, Austin, Texas, 78712, USA.
Dalton Trans. 2021 Oct 5;50(38):13528-13532. doi: 10.1039/d1dt01731d.
An 18-metal lanthanide nanoring [Yb(L)(HL)(OAc)(MeOH)(EtOH)(HO)] (1), which shows a ratiometric fluorescent response to DPA, was constructed through the strategy of using two types of polydentate organic ligands. The addition of DPA increases the visible ligand-centered emission, but decreases the NIR lanthanide luminescence of 1. The limit of luminescent detection of 1 for DPA is 1.5 μM. The high fluorescence sensitivity of 1 to DPA is not affected by the existence of interferents such as aromatic carboxylates and ions.
一个由 18 个金属镧系元素组成的纳米环[Yb(L)(HL)(OAc)(MeOH)(EtOH)(HO)]（1），通过使用两种类型的多齿有机配体的策略构建，对 DPA 表现出比率荧光响应。DPA 的加入增加了可见配体中心发射，但降低了 1 的近红外镧系发光。1 对 DPA 的发光检测限为 1.5 μM。1 对 DPA 的高荧光灵敏度不受芳香羧酸和离子等干扰物的存在的影响。
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