Bezzubov, Stanislav I. published the artcileTuning the photophysical and electrochemical properties of iridium(III) 2-aryl-1-phenylbenzimidazole complexes, Computed Properties of 2622-67-5, the publication is Inorganica Chimica Acta (2014), 22-30, database is CAplus.
Heteroleptic bis-cyclometalated Ir(III) complexes, [Ir(cpbi)2(H2dcbpy)][PF6] (1), [Ir(pbi)2(H2dcbpy)][PF6] (2), and [Ir(mpbi)2(H2dcbpy)][PF6] (3), where pbi = 1,2-diphenylbenzimidazole, cpbi = 2-(4-chlorophenyl)-1-phenylbenzimidazole, mpbi = 2-(3,4-dimethoxyphenyl)-1-phenylbenzimidazole, and H2dcbpy = 2,2′-bipyridine-4,4′-dicarboxylic acid were synthesized and characterized by elemental anal., 1H, 31P NMR, and high resolution mass-spectra. The mol. structure of complex 3 was determined from single-crystal x-ray anal. The complexes exhibit absorption up to 550 nm with molar absorptivities of 2500 M-1 cm-1. They have strong luminescence in broad yellow-to-red region in solutions at room temperature While chloro-substituent (complex 1) causes a little hypsochromic shift of the absorption maxima compared to unsubstituted 2, introduction of two methoxy-groups (complex 3) gives rise to a bathochromic shift of â?00 nm. A.C. voltammetry studies of the complexes indicates reversible oxidation and reduction potentials. Calculated excited state oxidation potentials for 1–3 are neg. enough to efficiently inject electrons into the conduction band of TiO2 (EF â?-0.5 V). Thus, from the electrochem. point of view, all the complexes, especially 3, are good candidates for operation in DSSC as dyes.
Inorganica Chimica Acta 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