1-苯基-1,2-乙二醇对映选择性发光传感的同结构手性金属-有机框架

IF 4.2 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Chenghua Deng, Zitong Wang, Jinhong Li and Wenbin Lin
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引用次数: 0

摘要

我们报道了基于Zn2桨轮二级构建单元和三个1,1 ' -双-2-萘酚(BINOL)衍生的四苯甲酸配体[L-(Et)2, L- me和L]合成的等结构手性金属有机骨架(CMOFs), Zn-L-(Et)2, Zn-L- me和Zn-L,它们在2,2 ' -羟基位置具有不同的烷基取代基。这些CMOFs被评价为1-苯基-1,2-乙醇二醇(PE)对映体的发光传感器。所有三种CMOF传感器都表现出S-PE比R-PE选择性猝灭,猝灭效率显著高于相应的自由配体。羟基的存在诱导了S-PE的非线性猝灭行为,进一步提高了猝灭效率。值得注意的是,在PE浓度为1.6 mM时,Zn-L- me和Zn-L表现出指数猝灭反应,这是对映体过量(ee)的函数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Isostructural chiral metal–organic frameworks for enantioselective luminescence sensing of 1-phenyl-1,2-ethanediol†

Isostructural chiral metal–organic frameworks for enantioselective luminescence sensing of 1-phenyl-1,2-ethanediol†

We report the synthesis of isostructural chiral metal–organic frameworks (CMOFs), Zn–L–(Et)2, Zn–L–Me and Zn–L, based on Zn2 paddle-wheel secondary building units and three 1,1′-bi-2-naphthol (BINOL)-derived tetrabenzoate ligands [L–(Et)2, L–Me, and L], featuring different alkyl substituents at the 2,2′-hydroxyl positions. These CMOFs were evaluated as luminescent sensors for the enantiomers of 1-phenyl-1,2-ethanediol (PE). All three CMOF sensors exhibited selective quenching of S-PE over R-PE, with significantly higher quenching efficiencies than their corresponding free ligands. The presence of hydroxyl groups induced nonlinear quenching behaviour toward S-PE, further enhancing quenching efficiency. Notably, Zn–L–Me and Zn–L showed exponential quenching responses as a function of enantiomeric excess (ee) at a PE concentration of 1.6 mM.

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来源期刊
Chemical Communications
Chemical Communications 化学-化学综合
CiteScore
8.60
自引率
4.10%
发文量
2705
审稿时长
1.4 months
期刊介绍: ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.
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