Tetra-cyanostilbene macrocycle: An effective “turn-on” fluorescence sensor for oxalic acid in aqueous media

Gong, Yandong; Fang, Shuting; Zheng, Yijie; Guo, Hongyu; Yang, Fafu

doi:10.1016/j.jphotochem.2022.114307

Cited by 11 publications

(3 citation statements)

References 38 publications

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“…As is well known, oranges are rich in OA; thus, oranges were selected as test samples to evaluate the sensing ability of complex 1 to OA in practical applications. We used the standard addition recovery method to determine the recovery rate of OA in orange extract . Orange samples were purchased from a local supermarket (Dalian, Liaoning).…”

Section: Resultsmentioning

confidence: 99%

Smart Stimulation Response of a Pyrene-Based Lanthanide(III) MOF: Fluorescence Enhancement to HX (F and Cl) or R-COOH and Artificial Applicable Film on HCl Vapor Sensing

Huo,

Zeng,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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Toxic acids produced by industries are major hazards to the environment and human health, and luminescent pyrenebased crystalline metal−organic frameworks (MOFs) demonstrate promising performance in the detection of toxic acids. Herein, two novel isostructural 3D porous lanthanide MOFs, and Ce (2); H 4 TBAPy (1,3,6,8-tetrakis(p-benzoic acid)pyrene); and DMA: N,N-dimethylacetamide) were synthesized, which showed alb topology. Based on the protonation and hydrogen bond mechanism, complex 1 could be used as a fluorescence recognition sensor for HX (X = F, Cl, Br, and I) acid solutions with different luminescence behaviors. It is worth noting that complex 1 exhibited high sensitivity in the fluorescence enhancement sensing of hydrofluoric acid, oxalic acid, and trichloroacetic acid. In particular, complex 1 had a low limit of detection (LOD) for OA (0.1 μM) and was applied to real monitoring of orange fruit samples. In addition, the PVA@1 film could selectively, sensitively, and quantitatively respond to hydrochloric acid (HCl) vapor through fluorescent quenching; due to its protonation and adsorption capacity, the LOD was 0.18 ppm. Therefore, the portable optical device, the PVA@1 film, can detect HCl gas in trace amounts, achieving the ultimate goal of real-time and rapid detection, which has potential application value for industrial production safety.

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Section: Resultsmentioning

confidence: 99%

Smart Stimulation Response of a Pyrene-Based Lanthanide(III) MOF: Fluorescence Enhancement to HX (F and Cl) or R-COOH and Artificial Applicable Film on HCl Vapor Sensing

Huo,

Zeng,

Wang

et al. 2023

ACS Appl. Mater. Interfaces

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“…Compound 2 was prepared according to the published literature. 46 Then the target macrocycle BCM was prepared by the “1 + 1” condensation of compound 1 and compound 2 in 75% yield after column chromatography. It was interesting that no other macrocycle was detected in this reaction process.…”

Section: Resultsmentioning

confidence: 99%

“…To date, many fluorescence sensors have been designed and synthesized for sensing ions 24–33 and organic molecules. 34–43 Lately, we reported a series of cyanostilbene macrocycles with excellent sensing abilities for complicated organic guests (such as ursolic acid and vitamin B1) in aqueous media, 44–47 providing a good strategy to detect natural organic molecules via fluorescence sensors. However, the effective fluorescence sensor for Rutin hydrate in aqueous media was almost unknown so far.…”

Section: Introductionmentioning

confidence: 99%