Thioxanthone-based organic probe with aggregation enhanced emission and exceptional mineral acids sensing abilities
Thioxanthone-based organic probe with aggregation enhanced emission and exceptional mineral acids sensing abilities
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DOI：
10.1016/j.molstruc.2020.129004
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发表时间：
2021-01-15
影响因子：
3.8
通讯作者：
Mushtaque, Md.
中科院分区：
文献类型：
--
作者：
Hassan, Syed Imran;Haque, Ashanul;Mushtaque, Md.
用于裸眼分析物检测的荧光探针的开发是新兴的研究领域。这样的探针可以被明智地工程化以实现具有高灵敏度和广泛适用性的分析物特异性响应。本文中，我们报告了供体-受体-供体（DA-D）型噻吨酮基发光体3，6-双（二甲氨基）-9H-噻吨-9-酮10，10-二氧化物（3）的可逆酸碱传感能力。还测定了3在固态和溶液态的光物理性质。此外，所报道的探针具有聚集增强发射（AEE）特性和pH依赖性发射颜色。在给体（N，N-二甲氨基）和受体（噻吨酮）单元之间观察到分子内电荷转移（ICT）过程。在紫外光和可见光下均能观察到变化，这一事实表明这种有机探针在区分实验室常用的不同强度的酸方面具有显著的前景。(C)2020爱思唯尔B. V.保留所有权利。
The development of fluorescent probe(s) for naked eye analyte detection is an emerging area of research. Such probes can be judiciously engineered to realize analyte specific response with high sensitivity and broad applicability. Herein, we report reversible acid-base sensing ability of a donor-acceptor-donor (DA-D) type thioxanthone-based luminophore 3,6-bis(dimethylamino)-9H-thioxanthen-9-one 10,10-dioxide (3). Photo-physical features of 3 in both the solid and solution states have also been determined. Moreover, the reported probe exhibited aggregation-enhanced emission (AEE) characteristics and pH dependent emission colour. An intramolecular charge transfer (ICT) process was observed between donor (N,Ndimethylamino) and acceptor (thioxanthone) units. The fact that changes can be seen under both the UV and visible lights without any special aid, signifies a remarkable prospect of this organic probe in distinguishing the commonly used laboratory acids of different strength. (C) 2020 Elsevier B.V. All rights reserved.