Sun, Peng published the artcileBlue-emitting Ir(III) complexes using fluorinated bipyridyl as main ligand and 1,2,4-triazol as ancillary ligand: syntheses, photophysical properties and performances in devices, Recommanded Product: 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine, the publication is Tetrahedron (2016), 72(50), 8335-8341, database is CAplus.
The blue-light-emitting Ir(III) complexes using 2-(3-(trifluoromethyl) -1H-1,2,4-triazol-5-yl)pyridine and fluorinated 2-phenylpyridine as ligands were synthesized and characterized in details. Their mol. structures were confirmed by 1H NMR, FT-IR and elemental analyzer. The emission peaks of complex (F2,4ppy)2Ir(tfmptz) using 2-(2,4-difluorophenyl)pyridine as main ligand are located at 457 and 481 nm. Increasing the number of F atoms leads to a lower the LUMO energy level. Phosphorescent organic light-emitting devices doped the synthesized Ir(III) complexes into 4,4′-N,N’-dicarbazolebiphenyl as emitting layers were fabricated. The based-(F3,4,5ppy)2Ir(tfmptz) device shows the maximum current efficiency of 9.9 cd/A with the electroluminescent peaks at 471 and 502 nm.
Tetrahedron published new progress about 219508-27-7. 219508-27-7 belongs to triazoles, auxiliary class Trifluoromethylated Building Blocks, name is 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine, and the molecular formula is C4H5F3O, Recommanded Product: 2-[5-(Trifluoromethyl)-1H-1,2,4-triazol-3-yl]pyridine.
Referemce:
https://en.wikipedia.org/wiki/1,2,3-Triazole,
Triazoles – an overview | ScienceDirect Topics