808142-75-8

Upstream product

• 808142-70-3 5-methyl-2-(4-phenylphenyl)pyridine 

Downstream Products

• 1004784-74-0 [Ir(5-CH₃-4'-Ph-2-phenylpyridine(-1H))2(OH₂)2](trifluoromethanesulfonate) 
• 808143-78-4 (4-methyl-1,10-phenanthroline)-bis-(5-methyl-2-(4-phenylphenyl)pyridine(-1H))-iridium(III) chloride 

Relevant academic research and scientific papers

Synthesis, separation, and circularly polarized luminescence studies of enantiomers of iridium(III) luminophores

A family of heteroleptic (C∧N)2Ir(acac) and homoleptic fac-Ir(C∧N)3 complexes have been synthesized and their photophysical properties studied (where C∧N = a substituted 2-phenylpyridine and acac = acetylacetonate). The neutral Δ and ∧ complexes were separated with greater than 95% enantiomeric purity by chiral supercritical fluid chromatography, and the solution circular dichroism and circularly polarized luminescence spectra for each of the enantio-enriched iridium complexes were obtained. The experimentally measured emission dissymmetries (gem) for this series compared well with predicted values provided by time-dependent density functional theory calculations. The discovered trend further showed a correlation with the dissymmetries of ionic, enantiopure hemicage compounds of Ru(II) and Zn(II), thus demonstrating the applicability of the model for predicting emission dissymmetry values across a wide range of complexes.

Phosphorescent iridium complex, preparation method thereof and electroluminescent device

The invention discloses a phosphorescent iridium complex, a preparation method thereof and an electroluminescent device, and belongs to the technical field of luminescent materials, the structural general formula of the phosphorescent iridium complex is as follows: in the formula, m is greater than or equal to 0 and less than or equal to 2, n is greater than or equal to 1 and less than or equal to3, and m + n = 3; r1, R2, R3 and R4 are independently at least one of hydrogen, deuterium, halogen, cyano, nitro, hydroxyl, alkyl, amino, sulfo, sulfonyl, adamantane, substituted or unsubstituted C1-C20 alkyl, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted 3-membered to 15-membered naphthenic base and substituted or unsubstituted C1-C20 alkoxy; and X is a carbon or nitrogen atom. After the phosphorescent iridium complex obtained by the embodiment of the invention is used for an organic light-emitting device, the maximum external quantum efficiency of the device can beimproved, the phosphorescence lifetime is prolonged, and the driving voltage is reduced.

Accelerated luminophore discovery through combinatorial synthesis

A method for accelerating the discovery of ionic luminophores using combinatorial techniques is reported. The photophysical properties of the resulting transition-metal-based chromophores were compared against a series of analogous, traditionally prepared species. The strong overlap between these two sets confirms the identity of the parallel synthesis products and supports the truthfulness of the combinatorial results. Further support for the combinatorial method comes from the adherence of these complexes to the energy gap law. The relationship between the structure of a complex and its photophysical properties was also considered, and static DFT calculations were used to assess whether it is feasible to predict the luminescent behavior of novel materials.