In this work, we synthesized a dicarboxyl-substituted tetraphenylethene (TPE) ligand, 4,4′-(1,2-diphenylethene-1,2-diyl)dibenzoic acid (H₂BCTPE), with a prominent aggregation-induced emission (AIE) feature. A two-fold interpenetrated luminescent metal–organic framework (LMOF) [Zn₄O(BCTPE)₃] (1) with Zn₄O(CO₂)₆ nodes is prepared using the trans-isomer of H₂BCTPE as a ligand, which shows a typical behavior of microporous materials and a high fluorescence quantum yield of 64.5%. The solvent free 1 is thermally stable, water stable and highly emissive. The suspension of solvent-free 1 in water exhibits high quenching efficiencies and low detection limits towards nitro-containing explosives (e.g. nitrobenzene, 4-nitrophenol, 2,4,6-trinitrophenol), and nitro-containing antibiotics (e.g. metronidazole and nitrofurazone). The solvent-free 1 can be a promising alternative to efficiently detect nitro-containing explosives and antibiotics under aqueous conditions.

中文翻译：

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基于二羧基取代的四苯基乙烯的新型发光金属有机框架，可有效检测水性介质中的含硝基炸药和抗生素†

在这项工作中，我们合成了二羧基取代的四苯乙烯（TPE）配体4,4'-（1,2-二苯乙烯-1,2-二基）二苯甲酸（H ₂ BCTPE），具有明显的聚集诱导发射（ AIE）功能。使用H ₂ BCTPE的反式异构体作为配体，制备了具有Zn ₄ O（CO ₂）₆节点的双重互穿的发光金属有机骨架（LMOF）[Zn ₄ O（BCTPE）₃ ]（1），这显示了微孔材料的典型行为，荧光量子产率高达64.5％。无溶剂1具有热稳定性，水稳定性和高发射率。悬浮液无溶剂水中的1表示对含硝基炸药（例如硝基苯，4-硝基苯酚，2,4,6-三硝基苯酚）和含硝基抗生素（例如甲硝唑和硝呋喃酮）具有较高的猝灭效率和较低的检测限。无溶剂1可能是在水性条件下有效检测含硝基炸药和抗生素的有前途的替代品。