Design, synthesis of novel unsymmetrical and NIR-emissive BF2 complexes and application in hydrazine detection

IF 4.2 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-07-16 DOI:10.1016/j.dyepig.2025.113042

Furong Xie , Yiyi Zhang , Lingyun Wang , Xueguang Ran , Derong Cao

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引用次数: 0

Abstract

We report a facile synthetic route towards novel unsymmetrical and NIR-emissive BF₂ complexes (PPAB1-Cy1, PPAB1-Cy2 and PPAB1-Cy3) from diketopyrrolopyrrole (DPP) as a starting material. The outstanding character such as high molar extinction coefficient (up to 1.31∗10⁵ M⁻¹cm⁻¹), large Stokes shift and high fluorescence quantum yield was obtained. Moreover, PPAB1-Cy1 showed highly efficient detection towards hydrazine, leading to excellent sensing performances (a low limit of detection of 4.53 nM, fast response, good selectivity, and dual colormetric/ratiometic fluorescence signals). The sensing mechanism revealed that hydrazine-triggered elimination of acrylonitrile group, multiple B–N detachment and hydrolysis of CN would synergistically occur between PPAB1-Cy1 and hydrazine, leading to less conjugated products. Furthermore, PPAB1-Cy1 could detect hydrazine content in real samples (soil, lake water and tap water) with good recovery rate. The quantitative detection and analysis of hydrazine vapor/solution or hydrazine contaminated sandy soil with PPAB1-Cy1 loaded filter paper, sponge, or silica gel via a smartphone application.

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新型非对称近红外发射BF2配合物的设计、合成及其在联氨检测中的应用

我们报道了一种以二酮吡咯（DPP）为原料合成新型不对称和nir发射的BF2配合物（PPAB1-Cy1， PPAB1-Cy2和PPAB1-Cy3）的简便路线。具有高摩尔消光系数（高达1.31∗105 M−1cm−1）、大斯托克斯位移和高荧光量子产率等突出特性。此外，PPAB1-Cy1对肼的检测效率很高，具有良好的检测性能（检测限低至4.53 nM，响应速度快，选择性好，具有双比色/比色荧光信号）。该传感机制揭示了肼引发的丙烯腈基消除、多重B-N脱离和CN水解在PPAB1-Cy1与肼之间协同发生，导致共轭产物较少。此外，PPAB1-Cy1可以检测土壤、湖水和自来水中肼的含量，回收率高。利用PPAB1-Cy1负载滤纸、海绵或硅胶，通过智能手机应用程序对肼蒸汽/溶液或肼污染的沙土进行定量检测和分析。

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来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.