391604-55-0Relevant articles and documents
Iridium complexes containing three different ligands as white OLED dopants
Park, Gui Youn,Kim, Youngsik,Ha, Yunkyoung
, p. 179 - 188 (2007)
Previously, we studied the luminescence characteristics of Ir(ppy)2(F2-ppy) and Ir(ppy)2(piq-F), which are heteroleptic iridium complexes involving two kinds of ligands, where F2-ppy, ppy and piq-F represent 2-(2,4-difluoro-phenyl)- pyridine, 2-phenylpyri
Bright sky-blue phosphorescence of [ n -Bu4N][Pt(4,6-dFppy)(CN) 2]: Synthesis, crystal structure, and detailed photophysical studies
Rausch, Andreas F.,Monkowius, Uwe V.,Zabel, Manfred,Yersin, Hartmut
, p. 7818 - 7825 (2010)
This work describes the synthesis, crystal structure, and detailed photophysical studies of [n-Bu4N][Pt(4,6-dFppy)(CN)2] (n-Bu = n-butyl, 4,6-dFppy = (4′,6′-difluorophenyl)pyridinate). The material can easily be prepared in high yiel
Ligand-to-ligand charge transfer in heteroleptic Ir-complexes: Comprehensive investigations of its fast dynamics and mechanism
Cho, Yang-Jin,Kim, So-Yoen,Cho, Minji,Wee, Kyung-Ryang,Son, Ho-Jin,Han, Won-Sik,Cho, Dae Won,Kang, Sang Ook
, p. 15162 - 15169 (2016)
To gain new insights into ligand-to-ligand charge-transfer (LLCT) dynamics, we synthesised two heteroleptic Ir3+ complexes: (Ir(dfppy)2(tpphz)) and (Ir(dfppy)2(dpq)), where dfppy, tpphz, and dpq are 2-(4,6-difluorophenyl)p
Green phosphorescent compound and organic electroluminescent device using same
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Paragraph 0113; 0120-0122, (2020/04/17)
The invention discloses a green phosphorescent compound and an organic electroluminescent device using the same. The green phosphorescent compound comprises an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode which are sequentially deposited; the green phosphorescent compound represented by the following formula (I) is used as a dopant in a light-emitting layer, wherein in the formula (I), R1, R2, R3, R4, R5, R6, R7 and R8 are independently selected from hydrogen, deuterium, halogen, alkyl, cycloalkyl, heteroalkyl, aralkyl, alkoxy, aryloxy, amino, silyl, alkenyl, cycloalkenyl, heteroalkenyl, alkynyl, aryl, heteroaryl, acyl, carbonyl, carboxylic acid, ester, nitrile, isonitrile, sulfenyl, sulfinyl, sulfonyl, phosphino and combinations thereof; X1-X9 are selected from carbon or nitrogen; X is selected from substituted or unsubstituted naphthyridine; Y is selected from substituted or unsubstituted benzene, pyridine, pyrimidine, pyrazine and pyridazine; and n is selected from 0, 1 or 2.
Effects of fluorine substituent on properties of cyclometalated iridium(III) complexes with a 2,2′-bipyridine ancillary ligand
Chen, Yan,Liu, Chun,Wang, Lei
supporting information, (2019/11/05)
Cationic cyclometalated Ir(III) complexes (Ir1-Ir5) with fluorine-substituted 2-phenylpyridine (ppy) derivatives as C^N cyclometalating ligands and 2,2′-bipyridine (bpy) as the ancillary ligand, have been synthesized and fully characterized. The influences of the number and the position of fluorine atoms at the cyclometalating ligands on the photophysical, electrochemical and oxygen sensing properties of the Ir(III) complexes have been investigated systematically. The introduction of fluorine on the C^N cyclometalating ligands of the complexes results in blue-shifts of the maximum emission wavelengths, and increases in the photoluminescence quantum yields (ΦPL), phosphorescence lifetimes and energy gaps, compared to the non-fluorinated [Ir(ppy)2(bpy)]+PF6? (Ir0). Among them, 2-(2,4-difluorophenyl)pyridine-derived Ir4 shows the maximum blue-shift (514 nm vs. 575 nm for Ir0) and the highest ΦPL (50.8% vs. 6.5% for Ir0). The complex Ir3 with 2-(4-fluorophenyl)-5-fluoropyridine as C^N ligand exhibits the highest oxygen sensitivity and excellent operational stability in 10 cycles within 4000 s.
Fluorine-containing aromatic derivatives of selective hydrogenation reduction method
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Paragraph 0219; 0220; 0221; 0222, (2017/11/27)
The invention discloses a selective hydrogenation reduction method of a fluorine-containing aromatic hydrocarbon derivative, and particularly discloses a preparation method of a compound shown in a general formula C1, C2 or C3. The preparation method comprises the following step of: reacting a compound shown in a general formula A1, A2 or A3 with a compound shown in a general formula B in the presence of a catalyst, thus forming the compound shown in the general formula C1, C2 or C3.