Multi-stimuli responsive D-A-D fluorenone derivative: Mechanochromic, thermochromism, LED devices, and water response

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2025-06-09 DOI:10.1016/j.jphotochem.2025.116564

Qianyun Liu , Xiang Liu , Datai Liu , Xianchao Du , Shuai Li , Xuyang Li , Xinfeng Cheng , Xiaojing Xing , Dongfang Qiu , Maosen Yuan

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引用次数: 0

Abstract

Developing a novel material that is multi-stimuli responsive and multifunctional remains an urgent demand for practical applications. In this work, we designed and synthesized a simple and donor-accept-donor (D-A-D) structure fluorenone derivative (FOTPA) with versatile aggregation-induced emission (AIE) and sensitivity to solvent polarity. FOTPA exhibited higher fluorescence quantum yield (Φ_F = 23.87 %) in solid state. The crystal of FOTPA exhibited noticeable force-induced blue-shifted and enhanced emission from crystal to amorphous due to the distinct disturbance of the weak intermolecular interactions and charge transfer process. Notably, FOTPA exhibited high-contrast ratiometric luminescence change (593 nm orange to 585 nm yellow) and rapid (10 s) and reversible thermochromism along with luminescence in the solid state. FOTPA showed promising applications in LED devices and a linear current response owing to its AIE property. FOTPA was used to detect water in THF and EA, and its limits of detection for water were 0.0021 % and 0.0065 %, respectively. This study provides insight into the design of multifunctional molecules and broadens the practical applications of smart materials.

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多刺激响应D-A-D芴酮衍生物：机械致变色、热致变色、LED器件和水响应

开发一种具有多刺激响应和多功能的新型材料仍然是实际应用的迫切需求。在这项工作中，我们设计并合成了一种简单的供体-受体-供体（D-A-D）结构的芴酮衍生物（FOTPA），它具有多种聚集诱导发射（AIE）和对溶剂极性的敏感性。FOTPA在固体状态下具有较高的荧光量子产率（ΦF = 23.87%）。由于弱分子间相互作用和电荷转移过程的明显干扰，FOTPA晶体表现出明显的力致蓝移和从晶体到非晶态的增强发射。值得注意的是，FOTPA具有高对比度的发光变化（593 nm橙色到585 nm黄色），快速（10 s）和可逆的热致变色随固态发光。由于其AIE特性，FOTPA在LED器件和线性电流响应中具有很好的应用前景。采用FOTPA法检测THF和EA中的水分，其水的检出限分别为0.0021%和0.0065%。该研究为多功能分子的设计提供了新的思路，拓宽了智能材料的实际应用。

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.