New 2,5-bis(2-ethylhexyl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione-2,2’-bipyridine-based co-polymer, synthesis, photophysical properties and response to metal cations / A. P. Krinochkin, M. I. Savchuk, E. S. Starnovskaya [et al.] // Chimica Techno Acta. - 2021. - Vol. 8, № 4. - Ст. 20218417 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SONOGASHIRA COUPLING -- POLYMER -- MONOAZATRIPHENYLENE -- 3,6-DI(THIOPHEN-2- YL)PYRROLO[3,4-C]PYRROLE- 1,4(2H,5H)-DIONE Аннотация: A new co-polymer based on fragments of 2-(2-pyridyl)monoazatriphenylene and 2,5-bis (2-ethylhexyl)-3,6-di(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4(2H,5H)-dione was prepared by using the Sonogashira reaction. The photophysical properties of the polymer were studied. The presence of a strong bathochromic shift of the absorption and emission maxima in comparison with the previously described monomer units is shown. The polymer exhibits an intense “turn-off” response toward Cu2+ cations. |