التفاصيل البيبلوغرافية
| العنوان: |
(1-(4-(5-Phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1 H -1,2,3-triazol-4-yl)-methylenyls α,ω-Bisfunctionalized 3- and 4-PEG: Synthesis and Photophysical Studies. |
| المؤلفون: |
Mohammed, Mohammed S., Kovalev, Igor S., Slovesnova, Natalya V., Sadieva, Leila K., Platonov, Vadim A., Kim, Grigory A., Aluru, Rammohan, Novikov, Alexander S., Taniya, Olga S., Charushin, Valery N. |
| المصدر: |
Molecules; Jul2023, Vol. 28 Issue 13, p5256, 13p |
| مصطلحات موضوعية: |
THIADIAZOLES, PENTAERYTHRITOL tetranitrate, POLYETHYLENE glycol, FLUORESCENCE quenching, SONOGASHIRA reaction, FLUORESCENCE |
| مستخلص: |
Two new azaheterocycle-based bolas, such as (1-(4-(5-phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1H-1,2,3-triazol-4-yl)-methylenyls α,ω-bisfunctionalized PEGs, were prepared via Cu-catalyzed click reaction between 2-(4-azidophenyl)-5-(aryl)-oxadiazole-1,3,4 and terminal ethynyls derived from PEG-3 and PEG-4. Due to the presence of two heteroaromatic cores and a PEG linker, these bola molecules are considered as promising fluorescent chemosensors for electron-deficient species. As a result of a well-pronounced "turn-off" fluorescence response towards common nitro-explosive components, such as 2,4-dinitrotoluene (DNT) and 2,4,6-trinitrotoluene (TNT), hard-to-detect pentaerythritol tetranitrate (PETN), as well as Hg2+ cation was observed. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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