| Autor: |
Mohammed MS; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia., Kovalev IS; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia., Slovesnova NV; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia.; Department of Pharmacy and Chemistry, Ural Medical University, 3 Repina St., 620028 Yekaterinburg, Russia., Sadieva LK; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia., Platonov VA; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia., Kim GA; I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20 S. Kovalevskoy/Akademicheskaya St., 620137 Yekaterinburg, Russia.; Institute of Natural Sciences and Mathematics, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia., Aluru R; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia., Novikov AS; Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia.; Research Institute of Chemistry, Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, 117198 Moscow, Russia., Taniya OS; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia., Charushin VN; Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia.; I. Ya. Postovsky Institute of Organic Synthesis of RAS (Ural Division), 22/20 S. Kovalevskoy/Akademicheskaya St., 620137 Yekaterinburg, Russia. |
| Abstrakt: |
Two new azaheterocycle-based bolas, such as (1-(4-(5-phenyl-1,3,4-oxadiazol-2-yl)phenyl)-1 H -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 Hg 2+ cation was observed. |
