Formula: C5H3Br2NIn 2021 ,《Stimuli-responsive cyclometalated platinum complex bearing bent molecular geometry for highly efficient solution-processable OLEDs》 was published in Chinese Chemical Letters. The article was written by Wei, Zhenhua; Zhang, Kai; Kim, Chan Kyung; Tan, Shuai; Wang, Shaojie; Wang, Lin; Li, Jun; Wang, Yafei. The article contains the following contents:
Smart materials, such as stimuli-responsive luminescence, have attracted much attentions due to their potential application in semiconductor filed. In this context, Pt complexes of (dfppy-DC)Pt(acac) and (dfppy-O-DC)Pt(acac) were prepared and characterized, in which (2-(4′,6′-difluorophenyl)pyridinato-N,C2′)(2,4-pentanedionato-O,O)Pt(II) was used as the planar emission core and 9-(4-(phenylsulfonyl)phenyl)-9H-carbazole (d.c.) was regard as the bent pendent. Both Pt complexes showed bright emission in solution and solid state, concomitant with charming external-stimuli-responsive emission under mech. grinding, organic solvent vapors and pressure. The change emission color spanned from yellow to near-IR region. Using the Pt complexes as the dopant, solution processable organic light-emitting diodes (OLEDs) were fabricated and a maximum external quantum efficiency of -18% was achieved, which is the highest value among the reported solution-processable OLEDs based on external-stimuli-responsive luminescence. This research demonstrated that Pt complex can show promising stimuli responsive emission via ingenious mol. design, indicating a novel way for developing the smart materials in semiconductor filed. In the part of experimental materials, we found many familiar compounds, such as 2,5-Dibromopyridine(cas: 624-28-2Formula: C5H3Br2N)
2,5-Dibromopyridine(cas: 624-28-2) belongs to pyridine. Pyridines, quinolines, and isoquinolines have found a function in almost all aspects of organic chemistry. Pyridine has found use as a solvent, base, ligand, functional group, and molecular scaffold. As structural elements, these moieties are potent electron-deficient groups, metal-directing functionalities, fluorophores, and medicinally important pharmacophores. Formula: C5H3Br2N