(Het)aryl-substituted monoazatriphenylenes as luminescent “turn-off” chemosensors for nitroaromatic compounds with internal filter effect correction

IF 3.8 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Optical Materials Pub Date : 2025-03-15 DOI:10.1016/j.optmat.2025.116949

L.K. Sadieva , A.F. Khasanov , T.I. Shendrikova , I.L. Nikonov , D.S. Kopchuk , O.S. Taniya , G.A. Kim , A.S. Novikov , O.V. Shabunina , G.V. Zyryanov , V.N. Charushin

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Abstract

(Het)aryl-substituted monoazatriphenylenes with an extended conjugated system were synthesized from 1,2,4-triazines via Boger reaction, and their photophysical properties were studied, including aggregation induced emission (AIE), as well as fluorescence “turn-off” response to nitroexplosives. Although obtained compounds showed fluorescence “turn-off” sensory response to the presence of all common nitroaromatic explosives, such as 2,4-dinitrotoluene (2,4-DNT), 2,4,6-trinitrotoluene (TNT) and 2,4,6-trinitrophenol (picric acid, PA), a well pronounced selectivity to PA was observed, and the fluorescence quenching efficiency was not based on inner filter effect (IFE). For the most representative chemosensor, the highest Stern-Volmer fluorescence quenching constant of 5.93 × 10⁶ M⁻¹ with quenching efficiency of 99.68 % was observed in the presence of PA with a limit of detection as low as 33.4 ppm.

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来源期刊

Optical Materials 工程技术-材料科学：综合

CiteScore

6.60

自引率

12.80%

发文量

1265

审稿时长

38 days

期刊介绍： Optical Materials has an open access mirror journal Optical Materials: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review. The purpose of Optical Materials is to provide a means of communication and technology transfer between researchers who are interested in materials for potential device applications. The journal publishes original papers and review articles on the design, synthesis, characterisation and applications of optical materials. OPTICAL MATERIALS focuses on: • Optical Properties of Material Systems; • The Materials Aspects of Optical Phenomena; • The Materials Aspects of Devices and Applications. Authors can submit separate research elements describing their data to Data in Brief and methods to Methods X.