Bezzubov, Stanislav I. published the artcileIridium(III) 2-Phenylbenzimidazole Complexes: Synthesis, Structure, Optical Properties, and Applications in Dye-Sensitized Solar Cells, Name: 1,2-Diphenyl-1H-benzo[d]imidazole, the publication is European Journal of Inorganic Chemistry (2016), 2016(3), 347-354, database is CAplus.
Bis-cyclometalated Ir(III) complexes, [Ir(LH)2(H2dcbpy)][PF6] (1), [Ir(LMe)2(H2dcbpy)][PF6] (2), and [Ir(LPh)2(H2dcbpy)][PF6] (3), where LH = 1-H-2-phenylbenzimidazole, LMe = 1-methyl-2-phenylbenzimidazole, LPh = 1,2-diphenylbenzimidazole, and H2dcbpy = 2,2′-bipyridine-4,4′-dicarboxylic acid, was synthesized and fully characterized by elemental anal., 1H and 31P NMR spectroscopy, mass spectrometry, and single-crystal x-ray anal. The complexes show strong luminescence in the yellow-orange region in EtOH at room temperature (quantum yield is up to 22 %), and absorb light up to 550 nm with molar absorptivities of 1500-2000 M-1 cm-1. Complexes 1 and 2 possess very similar optical properties, whereas the introduction of the Ph ring (complex 3) causes a hypsochromic shift (≈ 30 nm) of the luminescent maximum as well as resulting in an almost 50% increase in the extinction coefficient at 490 nm compared with 1 and 2. A dye-sensitized solar cell (DSSC) based on complex 3 exhibits a short-circuit photocurrent of 2.8 mA cm-2, an open-circuit photovoltage of 0.44 V, and a power conversion efficiency of 0.7%.
European Journal of Inorganic 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, Name: 1,2-Diphenyl-1H-benzo[d]imidazole.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem