Li, Hui published the artcileSynthesis, characterization and electrophosphorescent properties of mononuclear platinum(II) complexes based on 2-phenylbenzoimidazole derivatives, Computed Properties of 2622-67-5, the publication is Journal of Organometallic Chemistry (2009), 694(17), 2777-2785, database is CAplus.
The rational design, synthesis and characterization of five phosphorescent Pt complexes [(CÑ)Pt(acac)] [Hacac = acetylacetone, HCÑ = 1-methyl-2-(4-fluorophenyl)benzoimidazole (H-FMBI), 1-methyl-2-phenylbenzoimidazole (H-MBI), 1,2-diphenyl-benzoimidazole (H-PBI), 1-(4-(3,6-di-t-butylcarbazol-9-yl))phenyl-2-phenylbenzoimidazole (t-BuCz-H-PBI), and 1-(4-(3,6-di-(3,6-di-t-butyl-carbazol-9-yl))carbazol-9-yl)phenyl-2-phenylbenzoimidazole (t-BuCzCz-H-PBI)] are discussed. The crystal structure of (MBI)Pt(acac) shows a nearly ideal square planar geometry around the Pt atom and weak intermol. interactions with π-π spacing of 3.55 Å. All of the complexes emit green phosphorescence from the metal-to-ligand charge-transfer (MLCT) excited state with high quantum efficiency (0.08-0.17) at room temperature A multilayer organic light-emitting diode (OLED) with (MBI)Pt(acac) as phosphorescent dopant was fabricated using the method of high-vacuum thermal evaporation, which gives a maximum brightness, luminous and power efficiency of 13,605 cd/m2, 15.1 cd/A and 4.3 lm/W, resp. In contrast, a comparable performance can be achieved in the solution-processed OLED based on (t-BuCzPBI)Pt(acac) with a peak brightness, luminous and power efficiency of 13,606 cd/m2, 17.5 cd/A and 8.4 lm/W, resp. The better device efficiency results from the good square plane of the central Pt coordination unit and the inhibition of aggregates due to bulky and rigid t-butylcarbazole dendrons.
Journal of Organometallic Chemistry published new progress about 2622-67-5. 2622-67-5 belongs to imidazoles-derivatives, auxiliary class Benzimidazole,Benzene,Benzimidazole, name is 1,2-Diphenyl-1H-benzo[d]imidazole, and the molecular formula is C19H14N2, Computed Properties of 2622-67-5.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem