Dual fluorescent and time-dependent two-dimensional molecular crystals (DFTD-2DMC) as the effective fluorescent probes for sensing trace water in THF

IF 5.9 3区材料科学 Q2 CHEMISTRY, PHYSICAL

FlatChem Pub Date : 2025-03-17 DOI:10.1016/j.flatc.2025.100860

Deepak Dabur , Nallin Sharma , Priyanka Rana , Hui-Fen Wu

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Abstract

For the first time, we have synthesized the dual fluorescent and time-dependent 2-dimensional molecular crystals (DFTD-2DMCs) which is a novel type of pure organic molecule nanosheets that exhibit the features of distinctive optical characteristics (dual fluorescence) with the various structural confirmations while exploring the interaction of pentacene-quinone derivative (2P-1) with tetrahydrofuran (THF). A number of solvents with different polarities were investigated in order to check the feasibility to produce the DFTD-2DMCs. These DFTD-2DMCs are further employed as luminous water sensors with high sensitivity and varied luminescence centers due to their distinctive optical and structural features. The donor-accepter-donor type complexes 2DMC-1 and 2 with electron-rich phenyl groups display an intermolecular charge transfer (ICT) state and form aggregates when detecting trace water in THF. The luminescence is reduced after contact with water, allowing quantitative analysis to quantify the water amount. The DFTD-2DMCs' capacity as a highly sensitive water sensor in an organic solvent (THF) was first demonstrated in this study by the lowest LODs for THF with 2DMC-1 (0.05 %) and 2DMC-2 (0.01 %). This novel observation is a pioneering approach for opening a new type of sensor by using the DFTD-2DMC.

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双荧光和时变二维分子晶体（DFTD-2DMC）作为检测四氢呋喃中痕量水的有效荧光探针

本文首次合成了双荧光和时间相关的二维分子晶体（DFTD-2DMCs），这是一种新型的纯有机分子纳米片，在探索并五苯醌衍生物（p -1）与四氢呋喃（THF）的相互作用的同时，具有独特的光学特性（双荧光）和各种结构确认。考察了不同极性溶剂制备dftd - 2dmc的可行性。这些dftd - 2dmc由于其独特的光学和结构特征，进一步被用作高灵敏度和不同发光中心的发光水传感器。富电子苯基的供体-受体-供体型配合物2DMC-1和2在检测四氢呋喃中痕量水时表现出分子间电荷转移（ICT）状态并形成聚集体。与水接触后发光减弱，可进行定量分析，定量测定含水量。在本研究中，DFTD-2DMCs在有机溶剂（THF）中作为高灵敏度水传感器的能力首次被证明是通过2DMC-1（0.05%）和2DMC-2（0.01%）对THF的最低lod来证明的。这一新颖的观察结果是利用DFTD-2DMC开辟新型传感器的开创性方法。

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来源期刊

FlatChem Multiple-

CiteScore

8.40

自引率

6.50%

发文量

104

审稿时长

26 days

期刊介绍： FlatChem - Chemistry of Flat Materials, a new voice in the community, publishes original and significant, cutting-edge research related to the chemistry of graphene and related 2D & layered materials. The overall aim of the journal is to combine the chemistry and applications of these materials, where the submission of communications, full papers, and concepts should contain chemistry in a materials context, which can be both experimental and/or theoretical. In addition to original research articles, FlatChem also offers reviews, minireviews, highlights and perspectives on the future of this research area with the scientific leaders in fields related to Flat Materials. Topics of interest include, but are not limited to, the following: -Design, synthesis, applications and investigation of graphene, graphene related materials and other 2D & layered materials (for example Silicene, Germanene, Phosphorene, MXenes, Boron nitride, Transition metal dichalcogenides) -Characterization of these materials using all forms of spectroscopy and microscopy techniques -Chemical modification or functionalization and dispersion of these materials, as well as interactions with other materials -Exploring the surface chemistry of these materials for applications in: Sensors or detectors in electrochemical/Lab on a Chip devices, Composite materials, Membranes, Environment technology, Catalysis for energy storage and conversion (for example fuel cells, supercapacitors, batteries, hydrogen storage), Biomedical technology (drug delivery, biosensing, bioimaging)