Bola-type PEG-linked polyaromatic hydrocarbon-based chemosensors for the “turn-off” excimer fluorescence detection of nitro-analytes/explosives in aqueous solutions

Sadieva, Leila К.; Коvalev, Igor S.; Taniya, Olga S.; Платонов, В. А.; Novikov, Alexander S.; Berseneva, V. S.; Santra, Sougata; Zyryanov, Grigory V.; Ranu, Brindaban C.; Чарушин, В. Н.

doi:10.1016/j.dyepig.2022.111014

Cited by 5 publications

(1 citation statement)

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“…In addition, the introduction of a pyrene moiety results in an increase in the fluorescence lifetime values to 4.52 ns ( 3c ) and 4.34 ns ( 3g ), which are similar to the data reported for other pyrene derivatives in the literature [ 37 , 38 , 39 ]. For the other fluorophores 3 , the lifetime values vary from 0.49 to 1.22 ns ( Table 1 ).…”

Section: Resultssupporting

confidence: 87%

Polyaromatic Hydrocarbon (PAH)-Based Aza-POPOPs: Synthesis, Photophysical Studies, and Nitroanalyte Sensing Abilities

Mohammed

Коvalev

Словеснова

et al. 2023

IJMS

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1,4-Bis(5-phenyl-2-oxazolyl)benzene (POPOP) is a common scintillation fluorescent laser dye. In this manuscript, the synthesis of 2-Ar-5-(4-(4-Ar’-1H-1,2,3-triazol-1-yl)phenyl)-1,3,4-oxadiazoles (Ar, Ar’ = Ph, naphtalenyl-2, pyrenyl-1, triphenilenyl-2), as PAH-based aza-analogues of POPOP, by means of Cu-catalyzed click reaction between 2-(4-azidophenyl)-5-Ar-1,3,4-oxadiazole and terminal ethynyl-substituted PAHs is reported. An investigation of the photophysical properties of the obtained products was carried out, and their sensory response to nitroanalytes was evaluated. In the case of pyrenyl-1-substituted aza-POPOP, dramatic fluorescence quenching by nitroanalytes was observed.

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Section: Resultssupporting

confidence: 87%