Synthesis and Preparation of Ultralong Room-Temperature Phosphorescence Compounds Based on Pure p-Methoxybenzoic Acid Excluding Trace Impurities

IF 3.4 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Crystal Growth & Design Pub Date : 2024-08-22 DOI:10.1021/acs.cgd.4c0073310.1021/acs.cgd.4c00733

Yingxin Wang, Hongxia Sun, Xinpei Luo, Yuqi Zhu, Jieru Zhi, Xiaoxiao Jiao and Jinpeng Li*,

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Abstract

Purely persistent room-temperature phosphorescence (p-RTP) materials have attracted a great deal of attention due to their extensive applications. However, trace impurities, which are formed in synthesis, may cause an unpredictable effect on the luminescence properties. In this work, we have carefully separated and purified the organic compounds to eliminate the effects of trace impurities on luminescence, and have managed to obtain three fascinating afterglow materials, (p-mba)_n (PMBA), {[Ca(p-mba)₂(H₂O)]}_n (Ca-PMBA), and [Sr(p-mba)₂(H₂O)]_n (Sr-PMBA), based on the pure p-methoxybenzoic acid (p-mba). It is found that the resulting PMBA can produce a long-lived and efficient afterglow, with τ_afterglow and Φ_afterglow reaching up to 1.08 s and 27.94%, respectively, demonstrating high performance in the field of organic phosphorescence. Additionally, Ca-PMBA and Sr-PMBA are two rare examples showing green long-afterglow of 0.95 s (Φ_Phos = 4.44%) and 0.53 s (Φ_Phos = 9.72%), respectively, and these materials rank first and third among alkaline-earth (AE) metal-based MOFs. Inspired by these distinctive properties, the potential applications for anticounterfeiting and information encryption have been explored through the utilization of these compounds. Moreover, our results clearly demonstrate that trace impurities had no remarkable effect on the phosphorescence properties of the above-mentioned compounds, which is different from previous reports, and more research data need to be accumulated and analyzed to further investigate the effect of trace impurities on phosphorescent properties.

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基于纯对甲氧基苯甲酸（不含痕量杂质）的超长室温磷光化合物的合成与制备

纯持久室温磷光材料（p-RTP）因其广泛的应用而备受关注。然而，合成过程中产生的痕量杂质可能会对发光特性造成不可预知的影响。在这项工作中，我们对有机化合物进行了仔细的分离和提纯，以消除痕量杂质对发光的影响，并在纯对甲氧基苯甲酸（p-mba）的基础上成功获得了三种迷人的余辉材料：(p-mba)n (PMBA)、{[Ca(p-mba)2(H2O)]}n (Ca-PMBA)和[Sr(p-mba)2(H2O)]n (Sr-PMBA)。研究发现，所得到的 PMBA 能产生长效高效的余辉，τ余辉和 Φ余辉分别高达 1.08 秒和 27.94%，在有机磷光领域表现出很高的性能。此外，Ca-PMBA 和 Sr-PMBA 是两个罕见的例子，它们的绿色长余辉分别达到 0.95 秒（ΦPhos = 4.44%）和 0.53 秒（ΦPhos = 9.72%），在碱土（AE）金属基 MOFs 中排名第一和第三。受这些独特性质的启发，我们利用这些化合物探索了其在防伪和信息加密方面的潜在应用。此外，我们的研究结果清楚地表明，痕量杂质对上述化合物的磷光特性没有显著影响，这与以往的报道有所不同，需要积累和分析更多的研究数据，以进一步研究痕量杂质对磷光特性的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Crystal Growth & Design 化学-材料科学：综合

CiteScore

6.30

自引率

10.50%

发文量

650

审稿时长

1.9 months

期刊介绍： The aim of Crystal Growth & Design is to stimulate crossfertilization of knowledge among scientists and engineers working in the fields of crystal growth, crystal engineering, and the industrial application of crystalline materials. Crystal Growth & Design publishes theoretical and experimental studies of the physical, chemical, and biological phenomena and processes related to the design, growth, and application of crystalline materials. Synergistic approaches originating from different disciplines and technologies and integrating the fields of crystal growth, crystal engineering, intermolecular interactions, and industrial application are encouraged.