J Phys Chem B 2022 May 26. Epub 2022 May 26.
Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland.
Five compounds consisting of the same donor unit (dithieno[3,2-:2',3'-]pyrrole, ), the same π-linker (2,5-thienylene), and different acceptors of increasing electron-withdrawing ability (1,3,4-thiadiazole (), benzo[1,2,5]thiadiazole (), 2,5-dihydropyrrolo[3,4-]pyrrole-1,4-dione (), 1,2,4,5-tetrazine (), and benzo[3,8]phenanthroline-1,3,6,8(2,7)-tetraone ()) were synthesized. , , and turned out to be interesting luminophores emitting either yellow ( or near-infrared ( and ) radiation in dichloromethane solutions. The emission bands were increasingly bathochromically shifted with increasing solvent polarity. Read More