Open AccessBispyrenylalkane Chemosensor for the Naked-eye Detection of Nitro-explosives
Author(s) -
Igor S. Коvalev,
Leila К. Sadieva,
Olga S. Taniya,
V. M. Yurk,
Артем С. Минин,
Dmitry S. Kopchuk,
Grigory V. Zyryanov,
Valery N. Charushin,
О. Н. Чупахин
Publication year - 2021
Publication title -
chimica techno acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.128
H-Index - 1
eISSN - 2411-1414
pISSN - 2409-5613
DOI - 10.15826/chimtech.2021.8.2.09
Subject(s) - trinitrotoluene , pyrene , naked eye , explosive material , nitro , photochemistry , fluorescence , excimer , chemistry , polar , aqueous solution , molecule , analyte , combinatorial chemistry , organic chemistry , detection limit , chromatography , optics , alkyl , physics , astronomy
Pyrene-based compounds have a great potential as fluorescent chemosensors for various analytes including common nitro-explosives, such as 2,4,6-trinitrotoluene (TNT). Compounds having two pyrene units in one molecule, such as bispyrenylalkanes, are able to form stable, bright emissive in a visual wavelength region excimers both in non-polar and polar environments. In this work we wish to report that in non-polar solvents the excimer has poor chemosensing properties while in aqueous solutions it provides significant “turn-off” fluorescence response to TNT in the sub-nanomolar concentrations.